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SeaMonkey Changelog

What's new in SeaMonkey 2.53.18.2

Mar 28, 2024
  • Block set-cookie from multipart/x-mixed-replace with pref bug 1864385.
  • Check if WorkerRunnable::Run runs on top of WorkerThreadPrimaryRunnable::Run in a worker thread bug 1867982.
  • Process pairs in coord list in PolyArea bug 1878211.
  • Cherry-pick update to dav1d bug 1881093.
  • Land NSS NSS_3_90_2_RTM UPGRADE_NSS_RELEASE bug 1880562.
  • Fix DSN for send later bug 815638.
  • Catch webNavigation error during tab restore bug 1885748.

New in SeaMonkey 2.53.18.1 (Jan 17, 2024)

  • Update the NSS library to the latest esr 115 version for the final 2.53.18.1 release.

New in SeaMonkey 2.53.18 (Dec 11, 2023)

  • Update Branding info bug 1841167.
  • Use BugSplat for SeaMonkey crash reporting bug 1835524.
  • Unify notifications and permissions in SeaMonkeybug 1849526.

New in SeaMonkey 2.53.18 Beta 1 (Nov 14, 2023)

  • Update Branding info bug 1841167.
  • Use BugSplat for SeaMonkey crash reporting bug 1835524.
  • Unify notifications and permissions in SeaMonkeybug 1849526.

New in SeaMonkey 2.53.17.1 (Sep 21, 2023)

  • Upstream libwebp security fix bug 1852749.
  • CVE-2023-4863: Heap buffer overflow in libwebp bug 1852649.
  • Fix bad string encoded in ansi. l10n fr problem only bug 1847887.

New in SeaMonkey 2.53.17 (Aug 4, 2023)

  • Fix macOS Contacts permission request bug 1826719.
  • Remove SeaMonkey 2.57 links from debugQA bug 1829683.
  • Treat opening urls from the library as external bug 1619108.
  • Disable spam warning for autogenerated links in plaintext messages bug 619031.
  • Switch SeaMonkey build files to Python 3 bug 1635849.
  • Remove empty overlays from Composer bug 1828533.
  • Move xpfe autocomplete to comm-central suite bug 1418512.
  • Remove nsIPrefBranch2 and nsIPrefBranchInternal bug 1374847.

New in SeaMonkey 2.53.17 Beta 1 (Jun 21, 2023)

  • Fix macOS Contacts permission request bug 1826719.
  • Remove SeaMonkey 2.57 links from debugQA bug 1829683.
  • Treat opening urls from the library as external bug 1619108.
  • Disable spam warning for autogenerated links in plaintext messages bug 619031.
  • Switch SeaMonkey build files to Python 3 bug 1635849.
  • Remove empty overlays from Composer bug 1828533.
  • Move xpfe autocomplete to comm-central suite bug 1418512.
  • Remove nsIPrefBranch2 and nsIPrefBranchInternal bug 1374847.
  • Continue the switch from Python 2 to Python 3 in the build system.

New in SeaMonkey 2.53.16 (Mar 31, 2023)

  • No throbber in plaintext editor bug 85498.
  • Remove unused gridlines class from EdAdvancedEdit bug 1806632.
  • Remove ESR 91 links from debugQA bug 1804534.
  • Rename devtools/shim to devtools/startup bug 1812367.
  • Remove unused seltype=text|cell css bug 1806653.
  • Implement new shared tree styling bug 1807802.
  • Use `win.focus()` in macWindowMenu.js bug 1807817.
  • Remove WCAP provider bug 1579020.
  • Remove ftp/file tree view support bug 1239239.
  • Change calendar list tree to a list bug 1561530.
  • Various other updates to the calendar code.
  • Continue the switch from Python 2 to Python 3 in the build system.
  • Verified compatibility with Rust 1.66.1.

New in SeaMonkey 2.53.16 Beta 1 (Mar 1, 2023)

  • No throbber in plaintext editor bug 85498.
  • Remove unused gridlines class from EdAdvancedEdit bug 1806632.
  • Remove ESR 91 links from debugQA bug 1804534.
  • Rename devtools/shim to devtools/startup bug 1812367.
  • Remove unused seltype=text|cell css bug 1806653.
  • Implement new shared tree styling bug 1807802.
  • Use `win.focus()` in macWindowMenu.js bug 1807817.
  • Remove WCAP provider bug 1579020.
  • Remove ftp/file tree view support bug 1239239.
  • Change calendar list tree to a list bug 1561530.
  • Various other updates to the calendar code.
  • Continue the switch from Python 2 to Python 3 in the build system.
  • Verified compatibility with Rust 1.66.1.

New in SeaMonkey 2.53.15 (Jan 20, 2023)

  • Microtasks and promises bug 1193394.
  • Implement queueMicrotask()bug 1480236.
  • Remove old synchronous contentPrefService from the tree bug 886907 and bug 1392929.
  • Remove remaining uses of 'general.useragent.locale' bug 1410736 and bug 1410738.
  • Migrate to intl.locale.requested.locale list from 'general.useragent.locale' bug 1441016.
  • Introduce a pref to store BCP47 locale list bug 1414390, bug 1423532 and bug 1441026.
  • Remove synchronous certificate verification APIs from nsIX509CertDB bug 1453741 and bug 1453778.
  • Taskbar preview's favicon appears blank bug 1475524.
  • Call Imagelibs decodeImageAsyncWindows using a callback bug 1790695.
  • Remove PermissionsService from process Windows sandboxing code bug 1788233, bug 1789782 and bug 1794394.
  • Security info dialog doesn't show cert status anymore bug 1293378.
  • Replace nsIPlatfromCharset in mailnews bug 1381762.
  • Replace use of nsMsgI18NFileSystemCharset() with NS_CopyUnicodeToNative/NS_CopyNativeToUnicode() bug 1506422.
  • Cater for Outlook's/Hotmail's 'Deleted' folder bug 1320191.
  • Make some filter methods scriptable bug 1497513.
  • Fix crash in nsMsgFilterAfterTheFact::ApplyFilter() caused by async reset of 'm_curFolder' bug 537017.
  • Localize messages from nsIMsgFolder.logRuleHitFail() bug 1352731.
  • Add logging of message filter runs and actions bug 697522.
  • Check that we got a non-null header before running a filter on it (and crashing) bug 1563959.
  • With CONDSTORE, eliminate unneeded flag fetches at startup bug 1428097.
  • Fix so custom tags (keywords) are visible to all users bug 583677.
  • Improve handling of tags on shared folders bug 1596371.
  • Allow setting/resetting junk marking by user for yahoo/aol to stick bug 1260059.
  • Don't check subject if spellchecker is not ready bug 1069787.
  • Grammar issues in mailnews_account_settings.xhtml bug 1793291.
  • Remove use of nsIMemory bug 1792578.
  • Replace obsolete GetStringBundleService call in SeaMonkey bug 1794400.
  • SeaMonkey crashes on macOS Ventura 13.0 bug 1797696.
  • Website Navigation Bar has stopped working bug 1803918.
  • SeaMonkey switch to fullscreen does not work on macOS Ventura 13.0 bug 1804537.
  • Continue the switch from Python 2 to Python 3 in the build system.
  • Added support for clang 15 and macOS SDK 11.3.
  • Verified compatibility with Rust 1.65.

New in SeaMonkey 2.53.15 Beta 1 (Dec 8, 2022)

  • Microtasks and promises bug 1193394.
  • Implement queueMicrotask()bug 1480236.
  • Remove old synchronous contentPrefService from the tree bug 886907 and bug 1392929.
  • Remove remaining uses of 'general.useragent.locale' bug 1410736 and bug 1410738.
  • Migrate to intl.locale.requested.locale list from 'general.useragent.locale' bug 1441016.
  • Introduce a pref to store BCP47 locale list bug 1414390, bug 1423532 and bug 1441026.
  • Remove synchronous certificate verification APIs from nsIX509CertDB bug 1453741 and bug 1453778.
  • Taskbar preview's favicon appears blank bug 1475524.
  • Call Imagelibs decodeImageAsyncWindows using a callback bug 1790695.
  • Remove PermissionsService from process Windows sandboxing code bug 1788233, bug 1789782 and bug 1794394.
  • Security info dialog doesn't show cert status anymore bug 1293378.
  • Replace nsIPlatfromCharset in mailnews bug 1381762.
  • Replace use of nsMsgI18NFileSystemCharset() with NS_CopyUnicodeToNative/NS_CopyNativeToUnicode() bug 1506422.
  • Cater for Outlook's/Hotmail's 'Deleted' folder bug 1320191.
  • Make some filter methods scriptable bug 1497513.
  • Fix crash in nsMsgFilterAfterTheFact::ApplyFilter() caused by async reset of 'm_curFolder' bug 537017.
  • Localize messages from nsIMsgFolder.logRuleHitFail() bug 1352731.
  • Add logging of message filter runs and actions bug 697522.
  • Check that we got a non-null header before running a filter on it (and crashing) bug 1563959.
  • With CONDSTORE, eliminate unneeded flag fetches at startup bug 1428097.
  • Fix so custom tags (keywords) are visible to all users bug 583677.
  • Improve handling of tags on shared folders bug 1596371.
  • Allow setting/resetting junk marking by user for yahoo/aol to stick bug 1260059.
  • Don't check subject if spellchecker is not ready bug 1069787.
  • Grammar issues in mailnews_account_settings.xhtml bug 1793291.
  • Remove use of nsIMemory bug 1792578.
  • Replace obsolete GetStringBundleService call in SeaMonkey bug 1794400.
  • SeaMonkey crashes on MacOS Ventura 13.0 bug 1797696.
  • Continue the switch from Python 2 to Python 3 in the build system.
  • Added support for clang 15 and macOS SDK 11.3.
  • Verified compatibility with Rust 1.65.

New in SeaMonkey 2.53.14 (Sep 29, 2022)

  • Updates to the following DOM HTML element interfaces: Embed, Object, Anchor, Area, Button, Frame, Canvas, IFrame, Link, Image, MenuItem, TextArea, Source, Select, Option, Script and Html. Please test add-ons.
  • Continue the switch from Python 2 to Python 3 in the build system.
  • Add ESR 102 links to debugQA bug 1779028.
  • Remove about plugins from help menu bug 1779031.
  • Remove url whitelist from SeaMonkey bug 1779037.
  • Dead links in cs_nav_prefs_advanced.xhtml [en-US] bug 1783558.
  • Dead links in cs_nav_prefs_advanced.xhtml bug 1786030.
  • Remove obsolete chat services from SeaMonkey address book bug 1779034.
  • Address Book: "Get Map" button is not shown for home addresses bug 1779319.
  • Added compatibility for rust 1.63

New in SeaMonkey 2.53.14 Beta 1 (Aug 31, 2022)

  • Updates to the following DOM HTML element interfaces: Embed, Object, Anchor, Area, Button, Frame, Canvas, IFrame, Link, Image, MenuItem, TextArea, Source, Select, Option, Script and Html. Please test add-ons.
  • Continue the switch from Python 2 to Python 3 in the build system.
  • Add ESR 102 links to debugQA bug 1779028.
  • Remove about plugins from help menu bug 1779031.
  • Dead links in cs_nav_prefs_advanced.xhtml [en-US] bug 1783558.
  • Dead links in cs_nav_prefs_advanced.xhtml bug 1786030.
  • Remove obsolete chat services from SeaMonkey address book bug 1779034.
  • Address Book: "Get Map" button is not shown for home addresses bug 1779319.
  • Added compatibility for rust 1.63

New in SeaMonkey 2.53.13 (Jul 11, 2022)

  • Updates to devtools.
  • Updates to build configuration.
  • Starting the switch from Python 2 to Python 3 in the build system.
  • Removal of array comprehensions, legacy iterators and generators bug 1414340 and bug 1098412.
  • Adding initial optional chaining and Promise.allSettled() support.

New in SeaMonkey 2.53.13 Beta 1 (Jun 16, 2022)

  • Updates to devtools.
  • Updates to build configuration.
  • Starting the switch from Python 2 to Python 3 in the build system.
  • Removal of array comprehensions, legacy iterators and generators bug 1414340 and bug 1098412.
  • Adding initial optional chaining and Promise.allSettled() support.

New in SeaMonkey 2.53.12 (May 4, 2022)

  • Format Toolbar forgets its hidden status when switching to other view modes bug 1719020.
  • Remove obsolete plugin code from SeaMonkey bug 1762733.
  • Fix a few strict warnings in SeaMonkey bug 1755553.
  • Remove Run Flash from Site permissions and page info bug 1758289.
  • Use fixIterator and replace use of removeItemAt in FilterListDialog bug 1756359.
  • Remove RDF usage in tabmail.js bug 1758282.
  • Implement 'Edit Template' and 'New Message From Template' commands and UI bug 1759376.
  • [SM] Implement 'Edit Draft' command and hide it when not in a draft folder (port Thunderbird bug 1106412) bug 1256716.
  • Messages in Template folder need "Edit Template" button in header (like for Drafts) bug 80280.
  • Refactor and simplify the feed Subscribe dialog options updates bug 1420473.
  • Add system memory and disk size and placeDB page limit to about:support bug 1753729.

New in SeaMonkey 2.53.12 Beta 1 (Apr 23, 2022)

  • Format Toolbar forgets its hidden status when switching to other view modes bug 1719020.
  • Remove obsolete plugin code from SeaMonkey bug 1762733.
  • Fix a few strict warnings in SeaMonkey bug 1755553.
  • Remove Run Flash from Site permissions and page info bug 1758289.
  • Use fixIterator and replace use of removeItemAt in FilterListDialog bug 1756359.
  • Remove RDF usage in tabmail.js bug 1758282.
  • Implement 'Edit Template' and 'New Message From Template' commands and UI bug 1759376.
  • [SM] Implement 'Edit Draft' command and hide it when not in a draft folder (port Thunderbird bug 1106412) bug 1256716.
  • Messages in Template folder need "Edit Template" button in header (like for Drafts) bug 80280.
  • Refactor and simplify the feed Subscribe dialog options updates bug 1420473.
  • Add system memory and disk size and placeDB page limit to about:support bug 1753729.

New in SeaMonkey 2.53.11.1 (Mar 25, 2022)

  • Fix edge case when setting IntersectionObserver threshold bug 1758291.
  • OAuth2 prefs should use realuserName instead of username bug 1518126.

New in SeaMonkey 2.53.11 (Mar 2, 2022)

  • Remove obsolete MOZ_EXTENSIONS check in suite bug 1749146.
  • Add connect button to cZ Networks Editor bug 1736443.
  • Remove freenode remnants from ChatZilla in SeaMonkey bug 1741082.
  • Prefer secure over insecure protocol in network list in ChatZilla bug 1744440.
  • Composer - Change tag textbox is not removed after use bug 1755369.
  • Clean up repo links in debugQA bug 1746790.
  • Fix misspelled references to macOS in suite bug 1749144.
  • Remove obsolete references to Java and Flash bug 1749141.
  • Help button not working in delete cert dialog bug 1750386.
  • Rearrange Message Filter Dialog to make room for new features bug 1735053.
  • Use Insert key as shortcut to create new message filters bug 1735055.
  • Rename some variables used in SeaMonkey's FilterListDialog to match Thunderbird's bug 1735056.
  • Implement Copy to New message filter functionality bug 1735057.
  • Add move to top / bottom buttons to message filters bug 1735059.
  • Add preference to not prompt for message filter deletion bug 1735061.
  • Clean up folder handling in FilterListDialog bug 1736425.
  • Add refresh function to Filter list dialog so that it can be updated when already open and new filters are added externally bug 1737450.
  • Use listbox rather than tree in FilterListDialog bug 1746081.
  • MsgFilterList(args) should take targetFilter and pass it to FilterListDialog bug 1753891.
  • Mail&News' start.xhtml: "We" link broken bug 1748178.
  • Add search functionality to filter dialog bug 1749207.
  • Move the taskbar refresh timer in SeaMonkey to idle dispatch bug 1746788.
  • Prevent subresource loads from showing the progress indicator on the tab in SeaMonkey bug 1746787.

New in SeaMonkey 2.53.11 Beta 1 (Jan 31, 2022)

  • Remove obsolete MOZ_EXTENSIONS check in suite bug 1749146.
  • Add connect button to cZ Networks Editor bug 1736443.
  • Remove freenode remnants from ChatZilla in SeaMonkey bug 1741082.
  • Prefer secure over insecure protocol in network list in ChatZilla bug 1744440.
  • Clean up repo links in debugQA bug 1746790.
  • Fix misspelled references to macOS in suite bug 1749144.
  • Remove obsolete references to Java and Flash bug 1749141.
  • Help button not working in delete cert dialog bug 1750386.
  • Rearrange Message Filter Dialog to make room for new features bug 1735053.
  • Use Insert key as shortcut to create new message filters bug 1735055.
  • Rename some variables used in SeaMonkey's FilterListDialog to match Thunderbird's bug 1735056.
  • Implement Copy to New message filter functionality bug 1735057.
  • Add move to top / bottom buttons to message filters bug 1735059.
  • Add preference to not prompt for message filter deletion bug 1735061.
  • Clean up folder handling in FilterListDialog bug 1736425.
  • Add refresh function to Filter list dialog so that it can be updated when already open and new filters are added externally bug 1737450.
  • Use listbox rather than tree in FilterListDialog bug 1746081.
  • Mail&News' start.xhtml: "We" link broken bug 1748178.
  • Add search functionality to filter dialog bug 1749207.
  • Move the taskbar refresh timer in SeaMonkey to idle dispatch bug 1746788.
  • Prevent subresource loads from showing the progress indicator on the tab in SeaMonkey bug 1746787.

New in SeaMonkey 2.53.10.2 (Dec 28, 2021)

  • Obtain Windows code-signing certificate for SeaMonkey binary and update signing bug 1438084.
  • Support SHA-2 hashes in CertIDs in OCSP responses - port of bug 1746221.

New in SeaMonkey 2.53.10.1 (Dec 13, 2021)

  • Security fix for NSS code bug 1737470.
  • Only use networks and servers in lower case in ChatZilla bug 1742502.
  • Change classic form icon in SeaMonkey composer bug 1710915.
  • Addition fixes for SeaMonkey 32x32 default icons on Windows and macOS bug 1729153.

New in SeaMonkey 2.53.10 (Nov 17, 2021)

  • Minor fixes for testdisplay command in ChatZilla bug 1727976.
  • Show CTCP requests (excluding ACTION and DCC) bug 1722156.
  • IRCv3: Add support for server-time bug 1724586.
  • Add localization note for network editor dialog width in ChatZilla bug 1727977.
  • IRCv3: Add support for extended-join and account-notify bug 1722159.
  • Add ability to collapse message groups in ChatZilla bug 1724588.
  • Fix JS strict warnings in unescapeTagValue in ChatZilla bug 1727989.
  • IRCv3: Add support for invite-notify bug 1722161.
  • IRCv3: Add support for batch bug 1724589.
  • Fix JS strict warning in addHistory in cZ static.js bug 1727992.
  • IRCv3: Add support for cap-notify bug 1722162.
  • Stop using canonical name as collection keys in ChatZilla bug 1728025.
  • IRCv3: Add support for TLS and STS bug 1722166.
  • Helper function for renaming irc server properties in ChatZilla bug 1728027.
  • IRCv3: Add support for MONITOR bug 1722174.
  • Remove use of msg.commasp in ChatZilla bug 1726965.
  • Allow shiftKey to modify behaviour of link clicking in cZ bug 1713458.
  • IRCv3: Add support for echo-message bug 1722211.
  • In ChatZilla make /commands return all matches starting with pattern bug 1726966.
  • Use SeaMonkey prefs to determine how links behave in cZ bug 1713467.
  • Allow parameters to be localised in ChatZilla bug 1724105.
  • Add identify command to cZ and hook into password management bug 1713470.
  • IRCv3.1: Implement SASL with PLAIN mechanism bug 1717545.
  • IRCv3: Add support for message tags bug 1724584.
  • Add last read message divider to ChatZilla bug 1729159.
  • IRCv3: Add support for account-tag bug 1724585.
  • Missing option "text encoding Unicode/UTF-8" in preferences - Mailnews bug 1679260.
  • Detect Crashreporter using AppConstants in SeaMonkey bug 1735236.
  • Link about LEGACY extensions in Add-ons Manager is broken bug 1656797.
  • Update help for clear private data preferences and dialog bug 1728911.
  • Fix typo in cs_nav_prefs_appearance bug 1737473.
  • Drop leftover "Edit Menu" comment from messageWindow.xul and addressbook.xul bug 1725121.
  • Add dummy tab routines to SeaMonkey mailnews tab browser bug 1735243.
  • Folder pane and tab/window title not updated correctly when opening in new tab bug 1726940.
  • Allow mail tab bar to be controlled separately to browser tab bar bug 1724515.
  • Copy any user set values for new mail.tabs prefs bug 1729165.
  • Merge Master Passwords and Passwords pref panes into a single pref pane bug 1728099.
  • Move warning about redirection pref from Content to Privacy & Security pane bug 1728185.
  • Move website icons prefs from content pref pane to browser pref pane bug 1727425.
  • Move browser / mailnews system integration prefs into advanced pane bug 1727659.
  • Have separate opentabfor.middleclick for mailnews bug 1727948.
  • Add removeBrowser helper for tabbrowser bug 1730391.
  • Put in a so it's easy to overlay bug 1730392.
  • Allow browser focus to be avoided bug 1720003.
  • SeaMonkey 32x32 default icon has light stripe at the bottom bug 1729153.
  • Support and in SeaMonkey bug 1730408.
  • Middleclick on browser tab handled twice (closes tab and loads URL from primary or clipboard) bug 1734407.
  • Unable to create a new "Saved Search Folder" using "Save View as a Folder..." bug 1738669.
  • The following bugs were fixed in our branch of the Gecko source code only:
  • Enable compression for standard http connections bug 1728996.
  • Support VS2022 for compiling under Windows bug 1728988.

New in SeaMonkey 2.53.10 Beta (Oct 29, 2021)

  • Minor fixes for testdisplay command in ChatZilla bug 1727976.
  • Show CTCP requests (excluding ACTION and DCC) bug 1722156.
  • IRCv3: Add support for server-time bug 1724586.
  • Add localization note for network editor dialog width in ChatZilla bug 1727977.
  • IRCv3: Add support for extended-join and account-notify bug 1722159.
  • Add ability to collapse message groups in ChatZilla bug 1724588.
  • Fix JS strict warnings in unescapeTagValue in ChatZilla bug 1727989.
  • IRCv3: Add support for invite-notify bug 1722161.
  • IRCv3: Add support for batch bug 1724589.
  • Fix JS strict warning in addHistory in cZ static.js bug 1727992.
  • IRCv3: Add support for cap-notify bug 1722162.
  • Stop using canonical name as collection keys in ChatZilla bug 1728025.
  • IRCv3: Add support for TLS and STS bug 1722166.
  • helper function for renaming irc server properties in ChatZilla bug 1728027.
  • IRCv3: Add support for MONITOR bug 1722174.
  • Remove use of msg.commasp in ChatZilla bug 1726965.
  • Allow shiftKey to modify behaviour of link clicking in cZ bug 1713458.
  • IRCv3: Add support for echo-message bug 1722211.
  • In ChatZilla make /commands return all matches starting with pattern bug 1726966.
  • Use SeaMonkey prefs to determine how links behave in cZ bug 1713467.
  • Allow parameters to be localised in ChatZilla bug 1724105.
  • Add identify command to cZ and hook into password management bug 1713470.
  • IRCv3.1: Implement SASL with PLAIN mechanism bug 1717545.
  • IRCv3: Add support for message tags bug 1724584.
  • Add last read message divider to ChatZilla bug 1729159.
  • IRCv3: Add support for account-tag bug 1724585.
  • Missing option "text encoding Unicode/UTF-8" in preferences - Mailnews bug 1679260.
  • Detect Crashreporter using AppConstants in SeaMonkey bug 1735236.
  • Link about LEGACY extensions in Add-ons Manager is broken bug 1656797.
  • Update help for clear private data preferences and dialog bug 1728911.
  • Fix typo in cs_nav_prefs_appearance bug 1737473.
  • Drop leftover "Edit Menu" comment from messageWindow.xul and addressbook.xul bug 1725121.
  • Add dummy tab routines to SeaMonkey mailnews tab browser bug 1735243.
  • Folder pane and tab/window title not updated correctly when opening in new tab bug 1726940.
  • Allow mail tab bar to be controlled separately to browser tab bar bug 1724515.
  • Copy any user set values for new mail.tabs prefs bug 1729165.
  • Merge Master Passwords and Passwords pref panes into a single pref pane bug 1728099.
  • Move warning about redirection pref from Content to Privacy & Security pane bug 1728185.
  • Move website icons prefs from content pref pane to browser pref pane bug 1727425.
  • Move browser / mailnews system integration prefs into advanced pane bug 1727659.
  • Have separate opentabfor.middleclick for mailnews bug 1727948.
  • Add removeBrowser helper for tabbrowser bug 1730391.
  • Put in a so it's easy to overlay bug 1730392.
  • Allow browser focus to be avoided bug 1720003.
  • Seamonkey 32x32 default icon has light stripe at the bottom bug 1729153.
  • Support and in SeaMonkey bug 1730408.
  • middleclick on browser tab handled twice (closes tab and loads URL from primary or clipboard) bug 1734407.

New in SeaMonkey 2.53.9.1 (Sep 28, 2021)

  • Fix the lazy loading of images from some websites bug 1727967.
  • Move certain font family defaults from serif to sans serif bug 1727982.

New in SeaMonkey 2.53.9 (Aug 27, 2021)

  • There is now an option to clear browser history during shutdown bug 1621445.
  • Uninstall plugin command for ChatZilla bug 541719.
  • Update icons used in ChatZilla status bar bug 1710238 and bug 1710249.
  • Make ChatZilla understand mIRC color code 99 bug 1710298.
  • Implement IRCv3 basic CAP negotiation bug 1717539 and CAP LIST and update CAP ACK and CAP LS bug 1710313.
  • Use Unicode instead of images for emojis in ChatZilla bug 1711375 and add some extra emojis bug 1711376.
  • Use SeaMonkey's configured web search rather than a separate one in ChatZilla bug 1712498.
  • Add a networks editor to ChatZilla bug 1716232.
  • Implement IRCv3 away-notify bug 1717543, chghost and userhost-in-names bug 1717544, self-messaging bug 1722212 and WHOX bug 1722214.
  • Link to SeaMonkey website in debugQA for verification sites and development section bug 1685606.
  • Send button should be disable until we have a recipient bug 104973.
  • Remove need to use a modifier for marking messages as unread bug 1719216.

New in SeaMonkey 2.53.9 Beta 1 (Aug 11, 2021)

  • There is now an option to clear browser history during shutdown bug 1621445.
  • Uninstall plugin command for ChatZilla bug 541719.
  • Update icons used in ChatZilla status bar bug 1710238 and bug 1710249.
  • Make ChatZilla understand mIRC color code 99 bug 1710298.
  • Implement IRCv3 basic CAP negotiation bug 1717539 and CAP LIST and update CAP ACK and CAP LS bug 1710313.
  • Use Unicode instead of images for emojis in ChatZilla bug 1711375 and add some extra emojis bug 1711376.
  • Use SeaMonkey's configured web search rather than a separate one in ChatZilla bug 1712498.
  • Add a networks editor to ChatZilla bug 1716232.
  • Implement IRCv3 away-notify bug 1717543, chghost and userhost-in-names bug 1717544, self-messaging bug 1722212 and WHOX bug 1722214.
  • Link to SeaMonkey website in debugQA for verification sites and development section bug 1685606.
  • Send button should be disable until we have a recipient bug 104973.
  • Remove need to use a modifier for marking messages as unread bug 1719216.

New in SeaMonkey 2.53.8.1 (Jul 22, 2021)

  • Archive message action does not work bug 1718839.
  • Do not preserve offlineMsgSize parameter when moving/copying emails between folders bug 1720202 and bug 1430480.
  • Move thread code to threadPane.js and remove messengerdnd.js bug 515675.

New in SeaMonkey 2.53.8 (Jun 30, 2021)

  • Serious performance improvements and bug fixes tracked in bug 1633339 and bug 1711050.
  • Language attributes with country codes not recognized when building the Website Navigation Bar link toolbar bug 134436 and bug 1709443.
  • Optimize SeaMonkey icons for speed and optional higher quality for branding bug 1362210 and bug 1699322.
  • Support from= option when opening email compose window from the command line bug 1628671.
  • Update subject handling and GenericSendMessage function in compose window bug 1693994.
  • All message windows should update when view preferences are changed bug 1694765.
  • Improve marking of multiple messages as read / unread bug 1700530.
  • Show version numbers again in the add-on manager by the partial backout of bug 1161183.
  • Update available networks in chatZilla (including adding libera.chat)bug 1704392 and bug 1712505.
  • Change default port for IRC via TLS/SSL to 6697 bug 1704280.
  • Remove chatZilla and Lightning extension language packs and incorpate localisations within the main language pack bug 1604663.
  • Fix address drag and drop handling in compose window bug 1712002 and bug 1712227.
  • Further fixes for legacy generators and the deprecated for each statement in add-ons and the Add-on SDK bug 1702903.
  • For developers, fork DOMi repo into main SeaMonkey one which means no need to separately checkout the extension bug 1700003.

New in SeaMonkey 2.53.8 Beta 1 (May 31, 2021)

  • Serious performance improvements and bug fixes tracked in bug 1633339 and bug 1711050.
  • Language attributes with country codes not recognized when building the Website Navigation Bar link toolbar bug 134436 and bug 1709443.
  • Optimize SeaMonkey icons for speed and optional higher quality for branding bug 1362210 and bug 1699322.
  • Support from= option when opening email compose window from the command line bug 1628671.
  • Update subject handling and GenericSendMessage function in compose window bug 1693994.
  • All message windows should update when view preferences are changed bug 1694765.
  • Improve marking of multiple messages as read / unread bug 1700530.
  • Show version numbers again in the add-on manager by the partial backout of bug 1161183.
  • Update available networks in chatZilla bug 1704392 and bug 1712505.
  • Change default port for IRC via TLS/SSL to 6697 bug 1704280.
  • Remove chatZilla and Lightning extension language packs and incorpate localisations within the main language pack bug 1604663.
  • Fix address drag and drop handling in compose window bug 1712002 and bug 1712227.
  • Further fixes for legacy generators and the deprecated for each statement in add-ons and the Add-on SDK bug 1702903.
  • For developers, fork DOMi repo into main SeaMonkey one which means no need to separately checkout the extension bug 1700003.

New in SeaMonkey 2.53.7.1 (Apr 16, 2021)

  • Fix for legacy generators and the deprecated for each statement in add-ons and the Add-on SDK bug 1702903.
  • Fix for handling of dead keys in text input fields in GTK 3.24.26+ bug 1701288.

New in SeaMonkey 2.53.7 (Mar 30, 2021)

  • Remove Flash and NPAPI support bug 1688415.
  • Switch packaged extensions to be global bug 1659298.
  • Add Insert Forms to Composer bug 1684611.
  • Fix an issue with copying to IMAP sent folder and some reference count leaks in mailnews bug 1689890.
  • Tailing to delay tracker requests and enhance performance has been enabled bug 1358060.
  • Fix an issue with favorite and recent folders not showing in macOS bug 1695869.
  • Various security and general platform fixes.
  • The ChatZilla source has been integrated into SeaMonkey and no longer needs to be checked out separately if you build your own release bug 1551033.

New in SeaMonkey 2.53.7 Beta 1 (Mar 11, 2021)

  • Remove Flash and NPAPI support bug 1688415.
  • Switch packaged extensions to be global bug 1659298.
  • Add Insert Forms to Composer bug 1684611.
  • Fix an issue with copying to IMAP sent folder and some reference count leaks in mailnews bug 1689890.
  • Tailing to delay tracker requests and enhance performance has been enabled bug 1358060.
  • Various security and general platform fixes.
  • The ChatZilla source has been integrated into SeaMonkey and no longer needs to be checked out separately if you build your own release bug 1551033.

New in SeaMonkey 2.53.6 (Jan 24, 2021)

  • Improve usability of multiple mailboxes/folders selectionbug 1600103.
  • Add Greek localisation (el).
  • Remove more RDF from mailnews code.
  • Switch to mozilla as topsrcdir and component for building is comm/suite now.
  • Rust support is now up to 1.48 and official build is now using 1.47.0
  • Various security and general platform fixes.

New in SeaMonkey 2.53.6 Beta 1 (Dec 28, 2020)

  • Improve usability of multiple mailboxes/folders selectionbug 1600103.
  • Add Greek localisation (el).
  • Remove more RDF from mailnews code.
  • Switch to mozilla as topsrcdir and component for building is comm/suite now.
  • Rust support is now up to 1.48 and official build is now using 1.47.0
  • Various security and general platform fixes.

New in SeaMonkey 2.53.5.1 (Nov 21, 2020)

  • Fix advertising of av1 support bug 1490877.
  • Fix some issues found with supporting new macOS.
  • Various security and general platform fixes.

New in SeaMonkey 2.53.5 (Nov 14, 2020)

  • Provide WebP support bug 1653869.
  • Add startpage.com as a search engine available to all locales bug 1655283.
  • Added av1 support.
  • Included latest version of freetype2.
  • Added support for the resizeObserver web API.
  • Support for rust 1.47.0 on Linux and macOS platforms.
  • Dropped support for use of system sqlite.
  • Various security and general platform fixes.

New in SeaMonkey 2.53.5 Beta 1 (Oct 29, 2020)

  • Provide WebP support bug 1653869.
  • Add startpage.com as a search engine available to all locales bug 1655283.
  • Added av1 support.
  • Included latest version of freetype2.
  • Added support for the resizeObserver web API.
  • Dropped support for use of system sqlite.
  • Various security and general platform fixes.

New in SeaMonkey 2.53.4 (Sep 22, 2020)

  • SeaMonkey 2.53.4 contains (among other changes) the following major changes relative to SeaMonkey 2.53.3:
  • Upgraded NSS to 3.53.1 bug 1643859.
  • Updated to Unicode 11 for SpiderMonkey bug 1466471.
  • Updated bundled Twemoji Mozilla font to v0.5.1 to support newer emojis bug 1644346.
  • Updated how photos are handled in the addressbook bug 1641705.
  • Removed outdated RSS feed handlers bug 1643716.
  • Fix initialisation of TodayPane mini-day, to show the right day bug 1479628.
  • Fixed sizing issue of HTML mail question (askSendFormat) dialog bug 1583415.
  • Update of help page content and links.
  • Various security and general platform fixes.
  • SeaMonkey 2.53.4 contains (among other changes) the following major changes relative to SeaMonkey 2.49.5:
  • The Bookmarks Manager has switched its name to Library, and now also includes the History list. When invoking History, the Library will be shown with the History list selected. The extensive modifications were needed because of Mozilla Gecko platform API changes.
  • Download Manager has been migrated to a new API. Although it looks pretty much the same as before, the search option is missing and some other minor details work differently. The previous downloads history is removed during the upgrade.
  • The layout panel was added to the CSS Grid tools.
  • TLS 1.3 is the default SSL version now.
  • The only NPAPI plugin which will work with SeaMonkey 2.53.4 is Flash. Support for other NPAPI plugins like Java and Silverlight has been removed. For displaying pdf files in the browser you can use pdf.js-seamonkey from Isaac Schemm.
  • SeaMonkey now uses a new api for formatting regional data like time and date. Default is to use the application locale of the current SeaMonkey build. If you use a language pack or a different OS formatting this is usually not desired. You can change the formatting from the application locale to the regional settings locale (OS) in the preferences dialog under "Appearance".
  • Other:
  • SeaMonkey 2.53.4 uses the same backend as Firefox and contains the relevant Firefox 60.6 security fixes.
  • SeaMonkey 2.53.4 shares most parts of the mail and news code with Thunderbird. Please read the Thunderbird 60.0 release notes for specific changes and security fixes in this release.
  • Additional important security fixes up to Current Firefox 78.1 ESR and a few enhancements have been backported. We will continue to enhance SeaMonkey security in subsequent 2.53.x beta and release versions as fast as we are able to.

New in SeaMonkey 2.53.4 Beta 1 (Aug 20, 2020)

  • Upgraded NSS to 3.53.1 bug 1643859.
  • Updated to Unicode 11 for SpiderMonkey bug 1466471.
  • Updated bundled Twemoji Mozilla font to v0.5.1 to support newer emojis bug 1644346.
  • Updated how photos are handled in the addressbook bug 1641705.
  • Removed outdated RSS feed handlers bug 1643716.
  • Fixed sizing issue of HTML mail question dialog.
  • Update of help page content and links.
  • Various security and general platform fixes.

New in SeaMonkey 2.53.3 (Aug 20, 2020)

  • The LaTex tool TexZilla, used for inserting Math, has been upgraded to 1.0.2.
  • It is now possible to customize the toolbars in Composer and the formatting toolbar in Mailnews composition.
  • All folders of an account can now be marked as read.
  • There is now an option for not advertizing SeaMonkey at all in the user agent.
  • The preference for hiding the toolbar and menubar grippies can now be changed from "Preferences->Appearance".
  • The tab bar is now shown by default when only one tab is open bug 1634879. This change was needed as new users did not see either the tab bar or its "Open a new tab" button on a fresh installation. Existing users of the option "Hide the tab bar when only one tab is open" will need to make a one time only change in "Preferences->Browser->Tabbed Browsing" if they want to go back to the old setting.
  • Update of help page content and links.
  • SeaMonkey language packs are now version specific and will be disabled as part of the profile upgrade following the installation of a later version.
  • Search Engines have been centralized and updated in bug 1300198.
  • Address book now has updated IM fields, improved layout for card view pane, improved multi-word search, ability to search across multiple address books, more granular prompts when deleting items, print on the context menus and print button on the toolbar.
  • Multimedia support has been updated in preparation of supporting more audio video formats in the next releases. For enhanced security the Rust multimedia parser is now used for this and the libstagefright package has been removed.

New in SeaMonkey 2.53.3 Beta 1 (Jun 16, 2020)

  • The LaTex tool TexZilla, used for inserting Math, has been upgraded to 1.0.2.
  • It is now possible to customize the toolbars in Composer and the formatting toolbar in Mailnews composition.
  • All folders of an account can now be marked as read.
  • There is now an option for not advertizing SeaMonkey at all in the user agent.
  • The preference for hiding the toolbar and menubar grippies can now be changed from "Preferences->Appearance".
  • Change default to not autohide tab bar when there is only one tab in a window.
  • Update of help page content and links.
  • SeaMonkey language packs are now version specific and will be disabled as part of the profile upgrade following the installation of a later version.
  • Search Engines have been centralized and updated in bug 1300198.
  • Address book now has updated IM fields, improved layout for card view pane, improved multi-word search, ability to search across multiple address books, more granular prompts when deleting items, print on the context menus and print button on the toolbar.
  • Multimedia support has been updated in preparation of supporting more audio video formats in the next releases. For enhanced security the Rust multimedia parser is now used for this and the libstagefright package has been removed.

New in SeaMonkey 2.53.2 (Jun 16, 2020)

  • Scrollbars have been switched over to the native gtk3 theme in bug 1625754.
  • The download progress dialog has been fixed and is now showing the correct status for downloads. Some downloads may not show the transferred count. This problem is under investigation.
  • SeaMonkey is now translated and available in Finnish and Georgian.
  • Because of website compatibility issues and privacy concerns the Lightning version is no longer appended to the user agent string and has been removed from the preferences dialog.
  • Advanced Layers has been activated on Windows. This should boost performance on some websites. If you experience graphics problems please disable it by setting the pref "layers.mlgpu.enabled" to false.
  • Whether the native app chooser is used in Linux is now controlled via a preference setting in the Helper Applications preference pane.
  • In the Modern theme, popup notifications have improved styling and column headers now display sort direction arrows.
  • The column picker and folder view have been reinstated for the bookmarks panel.
  • Introduced the ability to close all tabs to the right of the current tab.
  • Whether mailnews tabs open in the background is controlled by a separate preference to browser tabs via General Settings section of main Mail & Newsgroups preference pane.
  • Fixed an issue with the recipient being missing when using Reply to Sender and Group button in Newsgroup discussions.
  • SeaMonkey now prevents address books from having duplicate names.

New in SeaMonkey 2.53.1 Beta 1 (Jan 21, 2020)

  • The Bookmarks Manager has switched its name to Library, and now also includes the History list. When invoking History, the Library will be shown with the History list selected. The extensive modifications were needed because of Mozilla Gecko platform API changes.
  • Download Manager has been migrated to a new API. Although it looks pretty much the same as before, the search option is missing and some other minor details work differently. The previous downloads history is removed during the upgrade.
  • Added Layout panel to CSS Grid tools.
  • TLS 1.3 is the default version now.

New in SeaMonkey 2.49.5 (Jan 21, 2020)

  • SeaMonkey 2.49.5 contains (among other changes) the following major changes relative to SeaMonkey 2.49.4:
  • SeaMonkey 2.49.5 uses the same backend as Firefox and contains the relevant Firefox 52.9.0 ESR security fixes.
  • SeaMonkey 2.49.5 shares most parts of the mail and news code with Thunderbird. Please read the Thunderbird 52.9.1 release notes for specific changes and security fixes in this release.
  • Additional security fixes up to ESR 60.2 and a few enhancements have been backported.

New in SeaMonkey 2.49.4 (Jul 27, 2018)

  • Among the general platform and mail fixes this release contains backported fixes from Thunderbird for the EFAIL security vulnerability.
  • Security fixes:
  • #CVE-2018-5148: Use-after-free in compositor

New in SeaMonkey 2.49.3 (May 5, 2018)

  • You were unable to add or edit properties for images and links in the 2.49.1 Composer. The problem, tracked in bug 1417819, has been fixed. We are sorry for the inconvenience it caused.
  • SeaMonkey now uses gtk3 on Linux. If you experience a problem because of this please file a bug and link it to Switch Linux builds to GTK3 with SeaMonkey 2.49. Pleae try another OS theme first. Some of them are buggy and cause problems with SeaMonkey, Thunderbird and Firefox.
  • With some Linux themes, the menulist- and history-dropmarker didn't show. It was actually there but only 1 pixel wide. The problem, tracked in bug 1331208, has been fixed. As a result the dropmarker in the location bar is now also shown a little wider under Windows.
  • Scrollbars didn't show the buttons under Linux. The problem, tracked in bug 1269145, has been fixed. We will try to improve the visual experience in a follow-up version.
  • WebRTC has been disabled by default. It needs an add-on to enable it per site. See the webrtc-permissions-ui-toggle add-on.
  • The active title bar was not visually emphasized under Linux or using the Windows XP/Vista/7 Classic theme. We opted to show it with a striped color bar in bug 1398973.
  • For security, parts of bug 1035091 were ported in bug 1411708. This might cause problems with add-ons like Stylish which use moz-document. Set the preference "layout.css.moz-document.content.enabled" to "true" to overcome this but be aware that this disables the added security fix.
  • You can remove the tool- and menubar grippies by setting the preference "browser.toolbars.grippyhidden" to "true".

New in SeaMonkey 2.49.2 (Feb 16, 2018)

  • Changes:
  • You were unable to add or edit properties for images and links in the 2.49.1 Composer. The problem, tracked in bug 1417819, has been fixed. We are sorry for the inconvenience it caused.
  • SeaMonkey now uses gtk3 on Linux. If you experience a problem because of this please file a bug and link it to Switch Linux builds to GTK3 with SeaMonkey 2.49. Pleae try another OS theme first. Some of them are buggy and cause problems with SeaMonkey, Thunderbird and Firefox.
  • With some Linux themes, the menulist- and history-dropmarker didn't show. It was actually there but only 1 pixel wide. The problem, tracked in bug 1331208, has been fixed. As a result the dropmarker in the location bar is now also shown a little wider under Windows.
  • Scrollbars didn't show the buttons under Linux. The problem, tracked in bug 1269145, has been fixed. We will try to improve the visual experience in a follow-up version.
  • WebRTC has been disabled by default. It needs an add-on to enable it per site. See the webrtc-permissions-ui-toggle add-on.
  • The active title bar was not visually emphasized under Linux or using the Windows XP/Vista/7 Classic theme. We opted to show it with a striped color bar in bug 1398973.
  • For security, parts of bug 1035091 were ported in bug 1411708. This might cause problems with add-ons like Stylish which use moz-document. Set the pref "layout.css.moz-document.content.enabled" to "true" to overcome this but be aware that this disables the added security fix.

New in SeaMonkey 2.39 RC 1 (Nov 4, 2015)

  • Bug 1205083: Don't enable low latency WMF video decoding as it crashes sometimes.
  • Bug 1218157: Only ever read from cached data in NotifyDataArrived.
  • Bug 1187613: Error: cannot initialize a variable of type 'const CGEventField' with an rvalue of type 'int' if build with 10.11 SDK.

New in SeaMonkey 2.39b1 Beta (Nov 3, 2015)

  • Bug 1216697 - follow-up: enable the dom.requestcache.enabled pref in DOM Cache tests.
  • Bug 1216697 - Unship Request.cache until the implementation is finished.
  • Bug 1201081 - Skip some code paths.
  • Bug 1201081 - UnsupportedOperationException crash at Canvas.clipPath.
  • Bug 1206700 - Followup to add extra test assertion requested by jwalden in review.
  • Bug 1215950 - GeckoInputConnection: Run re-focus workaround on the UI thread.
  • Bug 1210245 - Don't let the form validation anchor impact browser layout.
  • Bug 1217275 - Fix missing \n in IMMHandler::HandleDocumentFeed(), it was replaced to empty string accidentally.
  • Bug 1206700 - Fix a bug in property assignment, recently exposed by Reflect.set.
  • Bug 1216665 - Disable dom.ipc.plugins.asyncInit.enabled in 42.
  • Bug 1216907 - Uploads are broken on try for desktop and mobile builds since S3 migration.
  • Bug 1213721 - Tracking bug for migration from ftp.m.o to S3.
  • Bug 1214786 - Channelwrapper: Fix up maybeWrapChannel to wrap if not gecko internal channel.
  • Bug 1214279 - Fix the same infinite loop from bug 957236 in a different place.

New in SeaMonkey 2.38 (Sep 28, 2015)

  • Delivers the latest developments in web technologies such as HTML5, hardware acceleration and improved JavaScript speed.

New in SeaMonkey 2.38b1 Beta (Sep 8, 2015)

  • Bug 1201239 - Add a proper null check in PluginAsyncSurrogate::NotifyAsyncInitFailed
  • Bug 1006240 - Increase the timeout of browser_bug906190.js
  • Bug 1094218 - Intermittent browser_addons.js, simplify tests
  • Bug 1200869 - Empty the header value for code hygiene
  • Bug 1200856 - Avoid the extra variable to make the string manipulation faster.
  • Bug 1200322 - Fix a11y problem around key navigation in the urlbar
  • Bug 1195789 - Update fallback whitelist
  • Bug 1196079 - Always try to release Notification via normal WorkerRunnable first.
  • Bug 1177898 - Fix error checking in CloneFunctionObjectIfNotSingleton.
  • Bug 1182515 - WebSocketChannel leaked when WebSocketChannel::AsyncOpen fails
  • Bug 1190131 - Have GuidHelper use withConnectionWrapper to work around issues with PlacesUtils.bookmarks.runInBatchMode.
  • Bug 1198724 - Uplift a couple of PDF.js (1.1.403) patches that improve parsing/rendering of corrupt PDF files to Fx41.
  • Bug 1196403 - Apply crbug/522201 to support Windows 10 build 10525.
  • Bug 1196411 - Disable DXVA on 60fps 1080p videos for AMD cards that can't decode quick enough.
  • Bug 1197176 - Ensure we actually do a composite after resuming the compositor.
  • Bug 1193547 - Fallback to software decoding explicitly if the GPU doesn't support decoding the current resolution in hardware
  • Bug 1194890 - Ensure that any user32 imports to mozglue are delay loaded.
  • Bug 1197944 - Change pref so that the http auth dialog is presented for sub resources as well.

New in SeaMonkey 2.33.1 (Mar 23, 2015)

  • Fixed bugs:
  • Bug 1144988 - Don't let other pages to load while doing scroll-to-anchor.
  • Bug 1142552 - Update robocop chunking to fix rc10.
  • Bug 1113460 - Bump mozharness.json to revision 75c435ef19ca.
  • Bug 1142459 - Fix mixed content shield notification broke by bug 1140830.
  • Bug 1118216 - Stop recycling Message instances, as it's unnecessary.

New in SeaMonkey 2.33b1 Beta (Feb 25, 2015)

  • Bug 945192 - Followup to support Older SDKs in loaddlls.cpp. r=bbondy a=Sylvestre a=Callek on a CLOSED TREE

New in SeaMonkey 2.32.1 (Feb 7, 2015)

  • Mostly regression fixes, including:
  • MailNews feeds not updating
  • Selected profile in Profile Manager not remembered
  • Opening a bookmark folder in tabs on Linux
  • Troubleshooting Information (about:support) with the Modern theme

New in SeaMonkey 2.32 (Jan 14, 2015)

  • SeaMonkey-specific changes:
  • The Spell Check dialog is now resizable.
  • Generational Garbage Collection has been enabled.
  • Mozilla platform changes:
  • Improved handling of dynamic styling changes to increase responsiveness.
  • Implemented HTTP Public Key Pinning Extension (for enhanced authentication of encrypted connections).
  • Reduced resource usage for scaled images.
  • Also see Firefox 35 for Developers.
  • Fixed several stability issues.
  • Fixed bugs:
  • Bug 1064002 - Fix removal of --log-raw from xpcshell.
  • Bug 1110229 - Always paint the full low-res tile for performance and correctness.
  • Bug 1117140 - Avoid allocating some resources in the gmp child process which we have no use for.
  • Bug 1110760 - Build and Package Chromium Sandbox wow_helper.
  • Bug 1110760 - Increase the chances of the wow_helper target code symbols being in the assumed order.
  • Bug 1110760 - Import Chromium Sandbox wow_helper code.
  • Bug 1119189 - Start listening to room events regardless of throttle settings.
  • Bug 1076975 - Avoid serializing blobs when passed between threads in the same process.
  • Security fixes:
  • 2015-09 XrayWrapper bypass through DOM objects
  • 2015-08 Delegated OCSP responder certificates failure with id-pkix-ocsp-nocheck extension
  • 2015-06 Read-after-free in WebRTC
  • 2015-05 Read of uninitialized memory in Web Audio
  • 2015-04 Cookie injection through Proxy Authenticate responses
  • 2015-03 sendBeacon requests lack an Origin header
  • 2015-02 Uninitialized memory use during bitmap rendering
  • 2015-01 Miscellaneous memory safety hazards (rv:35.0 / rv:31.4)

New in SeaMonkey 2.32b1 Beta (Dec 17, 2014)

  • SeaMonkey-specific changes:
  • The Spell Check dialog is now resizable.
  • Generational Garbage Collection has been enabled.
  • Mozilla platform changes:
  • Improved handling of dynamic styling changes to increase responsiveness.
  • Implemented HTTP Public Key Pinning Extension (for enhanced authentication of encrypted connections).
  • Reduced resource usage for scaled images.
  • Also see Firefox 35 for Developers.
  • Fixed several stability issues.

New in SeaMonkey 2.31 (Dec 5, 2014)

  • Support for H264 (MP4) is now built in on Mac OS X Snow Leopard (10.6) and newer through native APIs.
  • HTTP/2 (draft14) and ALPN have been implemented.
  • Added ability to recover from a locked process in the "SeaMonkey is already running" dialog on Windows.
  • Added ECDH support for WebCrypto.
  • The console.table function has been added to the Error Console.
  • CSS transitions start correctly now when started at the same time as changes to display, position, overflow, and similar properties.
  • Fixed several stability issues.

New in SeaMonkey 2.31b2 Beta (Nov 29, 2014)

  • Support for H264 (MP4) is now built in on Mac OS X Snow Leopard (10.6) and newer through native APIs.
  • HTTP/2 (draft14) and ALPN have been implemented.
  • Added ability to recover from a locked process in the "SeaMonkey is already running" dialog on Windows.
  • Added ECDH support for WebCrypto.
  • The console.table function has been added to the Error Console.
  • CSS transitions start correctly now when started at the same time as changes to display, position, overflow, and similar properties.

New in SeaMonkey 2.31b1 Beta (Nov 3, 2014)

  • Fixed several stability issues.

New in SeaMonkey 2.30 (Oct 16, 2014)

  • OpenH264 support (sandboxed) has been added.
  • A new CSP (Content Security Policy) backend was implemented.
  • Support for connecting to HTTP proxies over HTTPS was implemented.
  • Improved reliability of the session restoration.
  • WebCrypto support has been enhanced: Added RSA-OAEP, PBKDF2 and AES-KW support, implemented wrapKey and unwrapKey, enabled import/export of JWK-formatted keys.
  • Fixed several stability issues.

New in SeaMonkey 2.29.1 (Oct 13, 2014)

  • OpenH264 support (sandboxed) has been added.
  • A new CSP backend was implemented.
  • Support for connecting to HTTP proxies over HTTPS was implemented.
  • Improved reliability of the session restoration.
  • WebCrypto support has been enhanced: Added RSA-OAEP, PBKDF2 and AES-KW support, implemented wrapKey and unwrapKey, enabled import/export of JWK-formatted keys.
  • Fixed several stability issues.

New in SeaMonkey 2.29 (Sep 8, 2014)

  • SeaMonkey-specific changes:
  • URLs that are too long to be shown completely appear in a tooltip now when hovering the location bar.
  • Coloring of the location bar for HTTPS URLs can be disabled through Preferences now.
  • Certain search engines can be discovered automatically now.
  • The status bar padlock icon features a context menu now.
  • You can now insert formulas in Composer using a dialog (LaTeX to MathML).
  • Feed items can be tagged automatically according to feed category tags now.
  • Searching within a message compose window will now display the find toolbar.
  • The account name is now shown in the status bar when downloading messages from POP servers.
  • Localizability of custom reply headers has been improved (mailnews.reply_header_* preferences).
  • Contact autocompletion in message composition windows now searches for all terms separately (AND search).
  • You can now search for contacts containing parentheses.
  • See the changes page for a more complete overview.
  • Mozilla platform changes:
  • HTTP caching (v2) has been enabled.
  • Generational garbage collection has been integrated.
  • Public key pinning support has been enabled.
  • The number of found items is now displayed in the find toolbar.
  • The trust bit for some 1024-bit root certificates has been removed / turned off.
  • Support for the Prefer:Safe HTTP header for parental control has been added.
  • mozilla::pkix has been added as default certificate verifier.
  • The CAPS infrastructure for specifying site-specific permissions (via capability.policy.* preferences) has been removed.
  • WebVTT has been implemented.
  • CSS3 variables have been implemented.
  • CSP 1.1 nonce-source and hash-source have been enabled.
  • With the exception of those bundled inside an extension or ones that are whitelisted, plugins are no longer activated by default.
  • Added support for GStreamer 1.0 (see bug 806917 for build configuration).
  • Disabled insecure NTLM (pre-NTLMv2) authentication (see bug 828183).
  • Passwords can now be saved via the password manager even when autocomplete="off" was used to prevent it (see bug 956906).
  • Also see Firefox 32 for Developers, Firefox 31 for Developers and Firefox 30 for Developers.
  • Fixed several stability issues.

New in SeaMonkey 2.26 (May 3, 2014)

  • SeaMonkey-specific changes:
  • The delimiter for forwarded messages can now be configured.
  • An option to not strip signatures on reply has been added to prevent top signatures from deleting the body.
  • See the changes page for a more complete overview.
  • Mozilla platform changes:
  • The Gamepad API has been finalized and enabled (learn more).
  • navigator.plugins is no longer enumerable, for user privacy.
  • ECMAScript Internationalization API has been enabled.
  • 'box-sizing' (dropping the -moz- prefix) has been implemented.
  • SharedWorker is now enabled by default.
  • CSS3 variables have been implemented.
  • Console object is now available in Web Workers.
  • Promises have been enabled by default.
  • has been implemented and enabled.
  • has been implemented and enabled.
  • Fixed several stability issues.
  • Fixes in 2.26 Final:
  • Yahoo Mail was broken trying to register a mailto protocol handler (bug 995802).
  • The horizontal HTML5 audio/video volume control was broken with the Modern theme (bug 991945).
  • Forwarding a message without CC header inline put an empty "CC:" line in the header table (bug 999269).
  • The Google CalDAV OAuth2 authentication dialog was not shown with Lightning installed (bug 901332).
  • The folder list in the message filter dialog was empty (bug 984948).
  • Features in Beta 1:
  • The delimiter for forwarded messages can now be configured (pref mailnews.forward_header_originalmessage) (bug 776438).
  • An option to not strip signatures on reply has been added to prevent top signatures from deleting the body (pref mail.strip_sig_on_reply) (bug 201581).
  • Fixes in Beta 1:
  • LDAP address autocomplete stopped working (LDAP sessions timed out) (bug 936785).
  • An OK button has been added to the RSS Subscription dialog (bug 368266).
  • A keyboard shortcut (Cmd+Opt+S) for opening/closing the sidebar on Mac has been added (bug 69489).
  • HTML Domains and Plain Text Domains preferences matched too broadly (bug 401014).
  • The en-US locale now defaults to UTF-8 for outgoing emails (bug 941545).
  • Google has been removed as a content handler for feeds because Reader and iGoogle are being discontinued (bug 943318).
  • Global alert icons were missing in certain sizes for the Modern theme (bug 936898).
  • The account manager should handle broken accounts more robustly now (bug 813929).
  • The Search subfolders checkbox was always disabled in the Search Messages dialog (bug 943096).
  • Lightning Preferences are now redirected to SeaMonkey's Preferences window (bug 636104).
  • The editor spell check dialog was too short so you could see only the top of the buttons at the bottom (bug 942548).
  • Feed folder rename/move/copy and DB sync issues have been fixed (bug 959272).
  • Support for in feeds has been added (bug 958072).
  • Click-to-play notifications now track plugins that are no longer present in the page (bug 937616).
  • If feeditems.rdf gets corrupt it will now be deleted and rebuilt automatically (bug 497809).
  • Groups of tabs bookmarked in a private windows had no titles (bug 947619).
  • "Click here to..." has been removed from message list column header tooltips (bug 881073).
  • Determining what is a feed message now uses the new FeedMsg flag, allowing to use feed messages in local folders (bug 760157).
  • The feed parser now prevents duplicate atom enlosures and uses feedburner:origLink if possible (bug 955869).
  • The location bar became empty if both web search and prefix/suffix addition were disabled (bug 950450).
  • The wrong identity was chosen when replying to own sent emails (bug 889410).
  • Enabling middlemouse.contentLoadURL and middle clicking a tab did not close the tab (bug 738786).

New in SeaMonkey 2.25 (Mar 20, 2014)

  • SeaMonkey-specific changes:
  • Newsgroup names can now be entered using autocompletion.
  • See the changes page for a more complete overview.
  • Mozilla platform changes:
  • The Gamepad API has been finalized and enabled (learn more).
  • VP9 video decoding has been implemented.
  • Support for Opus in WebM was added.
  • Volume control for HTML5 audio/video has been added.
  • Mac OS X Notification Center support has been added for web notifications.
  • Support for spdy/2 has been removed.
  • Support for multi-line flexbox in layout has been added.
  • Support for the MathML 2.0 mathvariant attribute has been added.
  • Background thread hang reporting has been added.
  • has been implemented and enabled.
  • Fixed several stability issues.

New in SeaMonkey 2.25b2 Beta (Mar 10, 2014)

  • SeaMonkey-specific changes:
  • Newsgroup names can now be entered using autocompletion.
  • See the changes page for a more complete overview.
  • Mozilla platform changes:
  • The Gamepad API has been finalized and enabled (learn more).
  • VP9 video decoding has been implemented.
  • Support for Opus in WebM was added.
  • Volume control for HTML5 audio/video has been added.
  • Mac OS X Notification Center support has been added for web notifications.
  • Support for spdy/2 has been removed.
  • Support for multi-line flexbox in layout has been added.
  • Support for the MathML 2.0 mathvariant attribute has been added.
  • Background thread hang reporting has been added.
  • has been implemented and enabled.
  • Fixed several stability issues.

New in SeaMonkey 2.24 (Feb 6, 2014)

  • SeaMonkey-specific changes:
  • The DoNotTrack and Prompt on Sanitize preferences are now kept in sync.
  • A pref (mailnews.p7m_external) has been added to allow users to choose an alternate application/pkcs7-mime handling.
  • Support for Atom Threading Extensions (RFC 4685) has been added.
  • Migrating profiles from Thunderbird supports the new signons file format now (support for the old format has been dropped).
  • Autocomplete drop-downs (e.g. used on the Location Bar and Open Location dialog) now show favicons for their entries.
  • The account name is now displayed in the status bar for all messages when checking mail.
  • IMAP alert messages now show the server of the corresponding mail account.
  • Newsgroup names are now searched for all search strings combined (AND-search) on the subscribe dialog.
  • See the changes page for a more complete overview.
  • Mozilla platform changes:
  • Removed support for importing logins from the legacy signons.txt format, including the Base64 conversion (bug 717490).
  • Enabled support for TLS 1.2 (RFC 5246) by default (bug 861266).
  • Added support for the SPDY 3.1 protocol
  • Added ability to reset style sheets using all:unset
  • Added support for scrolled fieldsets (overflow property support, bug 261037).
  • Implemented allow-popups directive for iframe sandbox, enabling increased security (bug 766282).
  • Unprefixed CSS cursor keywords -moz-grab and -moz-grabbing (bug 880672).
  • Added support for ES6 generators in SpiderMonkey (blog post).
  • Implemented support for mathematical function Math.hypot() in ES6 (bug 896264).
  • Added dashed line support on Canvas (bug 768067).
  • Fixed Azure/Skia content rendering on Linux (bug 740200).
  • Fixed several stability issues.

New in SeaMonkey 2.24b1 Beta (Feb 4, 2014)

  • SeaMonkey-specific changes:
  • The DoNotTrack and Prompt on Sanitize preferences are now kept in sync.
  • A pref (mailnews.p7m_external) has been added to allow users to choose an alternate application/pkcs7-mime handling.
  • Support for Atom Threading Extensions (RFC 4685) has been added.
  • Migrating profiles from Thunderbird supports the new signons file format now (support for the old format has been dropped).
  • Autocomplete drop-downs (e.g. used on the Location Bar and Open Location dialog) now show favicons for their entries.
  • The account name is now displayed in the status bar for all messages when checking mail.
  • IMAP alert messages now show the server of the corresponding mail account.
  • Newsgroup names are now searched for all search strings combined (AND-search) on the subscribe dialog.
  • See the changes page for a more complete overview.
  • Mozilla platform changes:
  • Removed support for importing logins from the legacy signons.txt format, including the Base64 conversion (bug 717490).
  • Enabled support for TLS 1.2 (RFC 5246) by default (bug 861266).
  • Added support for the SPDY 3.1 protocol
  • Added ability to reset style sheets using all:unset
  • Added support for scrolled fieldsets (overflow property support, bug 261037).
  • Implemented allow-popups directive for iframe sandbox, enabling increased security (bug 766282).
  • Unprefixed CSS cursor keywords -moz-grab and -moz-grabbing (bug 880672).
  • Added support for ES6 generators in SpiderMonkey (blog post).
  • Implemented support for mathematical function Math.hypot() in ES6 (bug 896264).
  • Added dashed line support on Canvas (bug 768067).
  • Fixed Azure/Skia content rendering on Linux (bug 740200).
  • Fixed several stability issues.

New in SeaMonkey 2.23 (Dec 13, 2013)

  • SeaMonkey-specific changes:
  • Download progress is now shown in the Mac OS X app dock icon.
  • EXIF orientation is now being used when displaying attached images in MailNews.
  • "This folder is being processed... to get messages." alerts on active MailNews folders now identify the account or folder.
  • MailNews notifications have a new look.
  • See the changes page for a more complete overview.
  • Mozilla platform changes:
  • All plugins, with the exception of recent Flash plugins, now default to click-to-play.
  • The password manager now supports script-generated password fields.
  • Support for H.264 on Linux is now available if the appropriate GStreamer plugins are installed.
  • Support for MP3 decoding on Windows XP has been added, completing MP3 support across Windows OS versions.
  • The CSP implementation now supports multiple policies, including the case of both an enforced and Report-Only policy, per the spec.
  • There is no longer a prompt when websites use appcache.
  • Support for the CSS image orientation property has been added.
  • IndexedDB can now be used as an "optimistic" storage area so it does not require any prompts and data is stored in a pool with LRU eviction policy, in short temporary storage.
  • When displaying a standalone images, the EXIF orientation information contained within the JPEG image is now matched (bug 298619).
  • Page load times have been improved due to no longer decoding images that are not visible (bug 847223).
  • Support for the AudioToolbox MP3 backend has been added on Mac OS X (bug 914479).
  • Fixed several stability issues.

New in SeaMonkey 2.23b2 Beta (Dec 9, 2013)

  • Fixes in Beta 2:
  • Fixed incompatibility with binary extensions such as Lightning (bug 915574).

New in SeaMonkey 2.23b1 Beta (Dec 9, 2013)

  • Features in Beta 1:
  • Download progress is now shown in the Mac OS X app dock icon (bug 900510).
  • EXIF orientation is now being used when displaying attached images in MailNews (bug 915909).
  • "This folder is being processed... to get messages." alerts on active MailNews folders now identify the account or folder (bug 592235).
  • MailNews notifications have a new look (bug 633937).
  • Fixes in Beta 1:
  • Menubar auto-hide did not work correctly (bug 938447).
  • Transparency rules were applied to signatures multiple times if they were nested (bug 931484).
  • On Windows with the Classic theme, tree cells (e.g. those in MailNews panes) had too much padding (bug 927779).
  • Click-to-play plugins did not show their placeholder after resizing (bug 920677).
  • Logging into sites like chase.com failed (bug 924025).
  • Windows MAPI support (sending mails and attaching files from external applications) was broken (bug 913493).
  • The spell check context menu items did not check whether spelling had been turned off (bug 907406).
  • The Password Manager did not work on script-generated forms (bug 908141).
  • Opening an .eml file threw exceptions (bug 911454).
  • Replies were not marked as "Replied" if a modified draft in an IMAP Drafts folder was sent (bug 530528).
  • Drag and Drop to/from the Download Manager had some minor issues (bug 900514).
  • Some links to addons.mozilla.org were out of date; theme types have been renamed (bug 906083).
  • All POP3 messages on a server could be re-downloaded if the local disk ran out of space, causing duplicates (bug 239455).
  • Send format HTML (mailnews.html_domains) and plain (mailnews.plaintext_domains) domains set in mailnews.js were ignored (bug 889152).
  • The default character encoding is now better described in the Languages Preferences pane (bug 895751, bug 902068).

New in SeaMonkey 2.22.1 (Nov 19, 2013)

  • Fixes:
  • Spell check sometimes did not work when typing in MailNews (bug 914462).
  • Some pages only loaded/rendered when moving the mouse (bug 933733).

New in SeaMonkey 2.22 (Oct 31, 2013)

  • Fixes:
  • Tabbed mail in 3-pane MailNews window no longer observed the browser.tabs.autoHide pref for display of single tabs (bug 902312).
  • Security fixes:
  • MFSA 2013-102 Use-after-free in HTML document templates
  • MFSA 2013-101 Memory corruption in workers
  • MFSA 2013-100 Miscellaneous use-after-free issues found through ASAN fuzzing
  • MFSA 2013-98 Use-after-free when updating offline cache
  • MFSA 2013-97 Writing to cycle collected object during image decoding
  • MFSA 2013-96 Improperly initialized memory and overflows in some JavaScript functions
  • MFSA 2013-95 Access violation with XSLT and uninitialized data
  • MFSA 2013-94 Spoofing addressbar though SELECT element
  • MFSA 2013-93 Miscellaneous memory safety hazards (rv:25.0 / rv:24.1 / rv:17.0.10)

New in SeaMonkey 2.21 (Sep 18, 2013)

  • Implemented an option to thread messages received by date.
  • Allowed deletion of news posts by default.
  • Implemented optional taskbar preview-per-tab.
  • Added support (permission prompt) for desktop notifications.
  • Added Isn't operator for searching by Priority.
  • Support for new scrollbar style on Mac OS X 10.7 and newer.
  • Accessibility related improvements on using pinned tabs.
  • Major SVG rendering improvements around Image tiling and scaling.
  • Removed support for sherlock files that are loaded from application or profile directory.
  • Support for W3C touch events disabled.
  • Fixed several stability issues.

New in SeaMonkey 2.20 (Aug 7, 2013)

  • SeaMonkey-specific changes:
  • The Content Security Policy (CSP) 1.0 parser has been enabled.
  • The Mixed Content Blocker has been enabled, blocking insecure active content loads on HTTPS pages.
  • New mail alert information can be customized now (Preferences/Mail & Newsgroups/Notifications).
  • A confirmation prompt has been introduced to protect against accidental permanent data loss when force-deleting messages using Shift+Del.
  • MailNews Save As Template supports multiple selections now.
  • The size on disk is now shown for newsgroup folders.
  • See the changes page for a more complete overview.
  • Mozilla platform changes:
  • Added support for scrollbar style in Mac OS X 10.7 and newer.
  • Enabled mixed content blocking to protects users from man-in-the-middle attacks and eavesdroppers on HTTPS pages (learn more).
  • Improved about:memory's functional UI.
  • Enabled DXVA2 on Windows Vista+ to accelerate H.264 video decoding.
  • Simplified interface for notifications of plugin installation.
  • Enabled users to switch the search provider across the entire browser.
  • CSP policies using the standard syntax and semantics will now be enforced.
  • Implemented the HTML5 form control.
  • Added unprefixed requestAnimationFrame.
  • Dropped blink effect from CSS rule text-decoration:blink and completely removed element.
  • Fixed several stability issues.

New in SeaMonkey 2.20b3 Beta (Jul 31, 2013)

  • Some private windows appeared in the undo close window list (bug 887045).
  • The Private Browsing shortcut key has been changed as it conflicted with spellcheck (bug 891081).
  • Remote debugging did not work if any tabs had no title (bug 889352).
  • Clicking on new mail notifcation opened two MailNews windows when no MailNews window was open (bug 840474).

New in SeaMonkey 2.20b2 Beta (Jul 24, 2013)

  • Fixes:
  • On Mac OS X, all plugins are now run out of process by default when in 32-bit mode (i386/x86) (Bug 883203).
  • The About SeaMonkey page claimed to be on the "default" update channel (Bug 893547).

New in SeaMonkey 2.20b1 Beta (Jul 24, 2013)

  • Features:
  • The Content Security Policy (CSP) 1.0 parser has been enabled (Bug 875706).
  • The Mixed Content Blocker has been enabled, blocking insecure active content loads on HTTPS pages (Bug 864369).
  • New mail alert information can be customized now (Preferences/Mail & Newsgroups/Notifications) (Bug 856454, Bug 866503, Bug 872133, Bug 874899).
  • A confirmation prompt has been introduced to protect against accidental permanent data loss when force-deleting messages using Shift+Del (Bug 308690).
  • MailNews Save As Template supports multiple selections now (Bug 786316).
  • The size on disk is now shown for newsgroup folders (Bug 851275).
  • Fixes:
  • The Publish Webpage prompt in Composer has been fixed (Bug 887183).
  • Reporting a phishing site no longer sends potentially sensitive information from query parameters (Bug 871548).
  • POP3 local inbox folders no longer grow past the 4 GB limit when getting mail (Bug 640371).
  • MailNews search, filter and mail views no longer include messages on the date with "date" "is after"/"is before" (Bug 248808).
  • Session restore now ensures restored windows are actually on-screen (Bug 868964).
  • The search bar no longer saves the search history in private windows (Bug 861691).
  • The SSL Preference pane has been updated to accommodate changed preference names and semantics (Bug 861471).
  • Crtl+clicking a link opens it now even if the click event handler calls event.stopPropagation() (Bug 861194).
  • The Get Mail popup menu is now restored to full width after customizing the toolbar (Bug 859287).
  • MailNews folder size checks check the available disk space now (Bug 789679).
  • Attaching a message without trailing line break no longer corrupts the attachment (Bug 523796).
  • The browser feed preview has been adapted for Private Browsing (Bug 856322).
  • The MailNews subscribe dialog has been improved (the server of the selected folder is now selected and subscription checkboxes are now accessible) (Bug 849525).
  • Balloon notifications on new mail are no longer shown if the tray icon is disabled (Bug 857647).
  • Compacting large mail folders should be more stable now (Bug 794303).

New in SeaMonkey 2.19 (Jul 3, 2013)

  • SeaMonkey-specific changes:
  • Mark -> As Read now checks the state of all selected messages instead of only the first one's.
  • Notifications for mixed content blocker have been implemented.
  • A new 3rd-party cookie restriction to visited websites option has been added to the Cookies pref pane.
  • The context menu Search option is now available for textareas and input fields.
  • Website storage mechanisms are now available in the Data Manager (localStorage, indexedDB, etc.).
  • "Open Containing Folder" is now already available during download.
  • See the changes page for minor changes.
  • Mozilla platform changes:
  • asm.js optimizations (OdinMonkey) have been enabled for major performance improvements.
  • Improved WebGL rendering performance through asynchronous canvas updates.
  • Plain text files displayed within the browser will now word-wrap.
  • For user security, the Components object is no longer accessible from web content.
  • Improved memory usage and display time when rendering images.
  • The Pointer Lock API can now be used outside of fullscreen.
  • CSS3 Flexbox has been implemented and enabled by default.
  • The new Web Notifications API has been implemented.
  • Added clipboardData API for JavaScript access to a user's clipboard.
  • Support for new HTML5 and elements has been added.
  • Fixed several stability issues.

New in SeaMonkey 2.19b2 Beta (Jun 27, 2013)

  • WebRTC is now enabled by default.
  • asm.js optimizations (OdinMonkey) have been enabled for major performance improvements.
  • Improved WebGL rendering performance through asynchronous canvas updates.
  • Plain text files displayed within the browser will now word-wrap.
  • For user security, the Components object is no longer accessible from web content.
  • Improved memory usage and display time when rendering images.
  • The Pointer Lock API can now be used outside of fullscreen.
  • CSS3 Flexbox has been implemented and enabled by default.
  • The new Web Notifications API has been implemented.
  • Added clipboardData API for JavaScript access to a user's clipboard.
  • Support for new HTML5 and elements has been added.
  • Fixed several stability issues.

New in SeaMonkey 2.19b1 Beta (Jun 21, 2013)

  • Features:
  • Mark -> As Read now checks the state of all selected messages instead of only the first one's (Bug 768025).
  • Notifications for mixed content blocker have been implemented (Bug 842191).
  • A new 3rd-party cookie restriction to visited websites option has been added to the Cookies pref pane (Bug 845353).
  • The context menu Search option is now available for textareas and input fields (Bug 807326).
  • Website storage mechanisms are now available in the Data Manager (localStorage, indexedDB, etc.) (Bug 588415).
  • "Open Containing Folder" is now already available during download (Bug 497379).
  • Fixes:
  • The new mail alert has been disabled for now due to issues on Mac (Bug 840474).
  • The Geolocation prompt does not offer an action in Private Browsing mode anymore if the action remembers permission for more than a session (Bug 870728).
  • A slightly less useless access key has been chosen for the new Error Console Filter textbox label (Bug 860851).
  • Mixed content blocker preferences are now handled by Sync (Bug 860970).
  • LDAP passwords were requested for each lookup even if they were saved (Bug 833971).
  • Get New Messages for All Accounts has been fixed (Bug 855631).
  • The "File" button in the "Search messages" window has been renamed to "Move" (Bug 325777).
  • The entries in the "Trust junk mail headers set by" menu list are now sorted (Bug 847172).
  • The check for the allowed mail storage directory has been made more universal and accessible to extensions (Bug 848477).
  • A wrong message and reason was reported with untrusted CA roots when signing email (Bug 465351).
  • The IMAP-specific "Empty trash" confirmation dialog has been removed and the mailnews.*.dontAskAgain and mail.*.dontAskAgain prefs been merged (Bug 448624).
  • Help now explains what happens when Safe Browsing blocks a website (Bug 852809).
  • Email addresses with trailing whitespace could be displayed wrongly when composing and cause lost mails and malformed duplicate address book entries (Bug 286760).
  • Switching the account during message composing did not apply the signing prefs from the new account (Bug 624432).
  • The Help Glossary has been extended with new Privacy & Security terms (Bug 847182).
  • Growl support has been removed again (Bug 852461).
  • Safe Browsing debug has been turned off and Sync support turned on (Bug 851789).
  • The Bookmarks Toolbar was not populated with items if the grippy was collapsed when the browser window was opened (Bug 818437).
  • Special mail folder icons were not shown for IMAP shared folders (bug 840003).
  • Null bytes are now stripped from document titles when setting the window title in order to prevent Private Browsing spoofing (Bug 851527).
  • Invalid message ContentType values are handled better now (Bug 459474).
  • A tutorial section on User Tracking has been added to Help (Bug 844823).
  • The Customize Headers window prompted twice (Bug 524662).
  • ReplyTo has been added to the default IMAP headers in order to fix Reply with Template behavior (Bug 655428).
  • The offline folder flag will no longer be set for SPAM and TRASH folders (Bug 809990).
  • Help now includes documentation for the Offline Applications pref pane (Bug 771534).
  • The main Privacy & Security pref pane is now documented and features a Help button (Bug 631566).
  • The access key for "Perform these actions" now sets/moves focus to first action item in the Filter editor (Bug 825449).
  • Clear Private Data (preferences and menu) documentation has been added to Help (Bug 416234).
  • An "Error parsing template: expected to be first" message could appear when opening the virtual folder list dialog (Bug 747325).
  • The umask for emails saved as a file were not respecting the system umask (Bug 472865).

New in SeaMonkey 2.18b4 Beta (May 4, 2013)

  • Lightweight themes crunched the window title bar on Mac OS (bug 864034).
  • The Print button was misaligned in the Composer and Message Composition toolbars with the Modern theme (bug 849359).

New in SeaMonkey 2.18b3 Beta (Apr 29, 2013)

  • Undo Close Tab did not work in private windows (bug 858825).
  • Video statistics have been fixed (bug 863008).

New in SeaMonkey 2.18b2 Beta (Apr 20, 2013)

  • MAJOR CHANGES:
  • Added support for safe browsing which blocks potentially malicious websites reported as attack sites (malware) or web forgeries (phishing) (bug 477718).
  • Information like preview text, subject and sender can be shown in new mail notifications now (bug 404580).
  • Basic Private Browsing support has been added (experimental for now):
  • Private windows never prompt even if normal windows are open (bug 846762).
  • Added an about:privatebrowsing page (bug 837493).
  • Add -private command line option (bug 837496).
  • Added a File/New/Private Window menu item (bug 837510).
  • Added an Open Link in Private Window context menu item (bug 841230).
  • Open Location has a Private Window option now (bug 841616).
  • Added basic private browsing support (bug 837492).
  • FIXES:
  • Some parts of click-to-play did not work if doorhangers were disabled (Bug 860537).
  • The Open Link in New Window context menu item had stopped working in MailNews (Bug 860905).
  • The browser feed preview had been broken due to Private Browsing changes (Bug 856322).
  • Per-site click-to-play permissions had stopped working (Bug 854867).
  • An LDAP password was requested for each lookup even if it was saved (Bug 833971).
  • Creating/amending mailing lists in the Address Book had been broken (Bug 859068).
  • The tabbed browser uses the favicon service in a privacy-aware way now (bug 856406).
  • The Open Location dialog does not save the state anymore when opened from a private window (bug 844497).
  • Private downloads did not update (bug 849440).
  • Save As from the context menu did not take the privacy status into account (bug 851304).
  • Added icons for security notifications (bug 853268).
  • Fixed the browser feed preview to work with XBL scopes (bug 846763).

New in SeaMonkey 2.17.1 (Apr 15, 2013)

  • Fixes:
  • UNC path handling issues were fixed on Windows (bug 846848).
  • SPNEGO/MS KRB5 had stopped working; NTLM SSP was tried instead (bug 857291).
  • Click-to-play no longer respected per-site permissions (bug 854867).

New in SeaMonkey 2.17 (Apr 3, 2013)

  • Continued performance improvements around common browser tasks (page loads, downloads, shutdown, etc.).
  • Continued implementation of draft ECMAScript 6 (clear() and Math.imul).
  • now supports blend modes.
  • Various and improvements have been implemented.
  • The Details button on the Crash Reporter has been fixed (bug 793972).
  • Fixed several stability issues.

New in SeaMonkey 2.17 Beta 4 (Mar 29, 2013)

  • More security fixes.

New in SeaMonkey 2.17 Beta 3 (Mar 25, 2013)

  • Removed experimental support for HTML5 'dir' value 'auto'. (bug 850069)
  • Page Info is broken when a broken image exists on the page. (bug 850072).

New in SeaMonkey 2.16.2 (Mar 13, 2013)

  • Fixed a regression introduced in 2.16.1 relating to strings. Most prominent in some locales with portions of SeaMonkey unuseable.

New in SeaMonkey 2.16.1 (Mar 9, 2013)

  • Major Changes:
  • Reply to List is now supported (bug 654009, bug 814948).
  • SSL-related warning prompts (leaving or entering a secure site, viewing mixed content) have been replaced by less intrusive, non-modal notification bars (bug 810673).

New in SeaMonkey 2.15.1 (Jan 21, 2013)

  • Problems involving HTTP proxy transactions have been fixed (bug list).
  • The Unity player crashed on Mac OS X (bug 828954).

New in SeaMonkey 2.16 Beta 1 (Jan 14, 2013)

  • Mozilla platform changes:
  • Canvas elements can export their content as an image blob using canvas.toBlob() now.
  • CSS @page is now supported.
  • CSS viewport-percentage length units have been implemented (vh, vw, vmin and vmax).
  • CSS text-transform now supports full-width.
  • Fixed several stability issues.

New in SeaMonkey 2.15 (Jan 9, 2013)

  • SeaMonkey-specific changes:
  • SeaMonkey can be set as default client/browser on Mac and Linux now.
  • See the changes page for minor changes.
  • Mozilla platform changes:
  • The new IonMonkey compiler improves JavaScript performance.
  • Preliminary support for WebRTC has been added.
  • Image quality has been improved through a new HTML scaling algorithm.
  • CSS3 Flexbox has been implemented.
  • Support for new DOM property window.devicePixelRatio has been added.
  • Support for @supports has been added (disabled for now).
  • Startup time has been improved through smart handling of signed extension certificates.
  • HTML5: Support for W3C touch events has been implemented, taking the place of MozTouch events
  • Insecure content loading has been disabled on HTTPS pages (see bug 62178).
  • Responsiveness for users on proxies has been improved.
  • Fixed several stability issues.

New in SeaMonkey 2.15 Beta 5 (Dec 22, 2012)

  • Adding a failed favicon produced an error (bug 792735).

New in SeaMonkey 2.15 Beta 4 (Dec 15, 2012)

  • The IMAP account option "Synchronize the most recent" was not saving correctly (bug 804091).
  • Click-to-play was broken on various websites like cnn.com or latimes.com (bug 813963).

New in SeaMonkey 2.15 Beta 3 (Dec 8, 2012)

  • Add-ons can now overlay the plugin preview for specific MIME types (bug 812898).

New in SeaMonkey 2.15 Beta 2 (Dec 4, 2012)

  • Not detecting feed when type has leading and/or trailing whitespace (bug 484379).
  • The Select Addresses dialog came up blank if opened from a Compose window with a single To/Cc/Bcc field filled in (bug 814770).
  • A change to the User Agent string has been reverted since it caused some website incompatibilities (bug 816749).
  • Information failed to show on the message header pane under certain circumstances (bug 803322).
  • The display quality of fonts could be perceived as bad when Cleartype was turned off on Windows (bug 814101).
  • The permissions database was not read completely if it included an invalid entry (bug 814554).
  • @supports has been disabled for now (bug 814310).

New in SeaMonkey 2.15 Beta 1 (Dec 4, 2012)

  • Major Changes:
  • SeaMonkey can set the desktop wallpaper and be set as default client/browser on Mac now (bug 433254).
  • SeaMonkey can be set as default client/browser on Linux now (bug 783908).
  • Fixes:
  • Information failed to show on the message header pane under certain circumstances (bug 803322).
  • On the Junk Settings pane of Account Settings, UI elements now get disabled based on the controlling radio selector and checkbox (bug 725488).
  • Copied bookmarks erroneously inherited annotations (special folder flags) (bug 755758).
  • Initial send in background support has been added (pref mailnews.sendInBackground is off by default) (bug 789865).
  • A Global Addressing Preferences button has been added to the Composition & Addressing pane of Account Settings (bug 788429).
  • In Account Settings / Server Settings, Server and User Name now expand with the window (bug 545194).
  • The input box in the News "Download headers" dialog allowed entering non-numeric characters (bug 795097).
  • Custom font selections on the Mail & Newsgroups Composition pref pane failed to show properly (bug 529418).
  • Other Languages has been renamed to Unicode on the Fonts pref pane (bug 789724).
  • A Global Junk Preferences button has been added to the Junk Settings pane of Account Settings (bug 551827).
  • An identity can now be set as the default in the identity list editor of Account Settings (bug 314806).
  • Trying to use invalid file system folders as the Local Directory for mail storage now triggers a warning (bug 577775).
  • The Enter key adds a new criteria line in the filter editor now (Ctrl+Enter accepts the dialog) (bug 49474).
  • Feeds had issues with folder names containing a percent sign (bug 787729).
  • The dom.identity.enabled pref was missing from about:config (bug 787873).
  • Add-ons were not listed when resetting Sync (bug 787802).

New in SeaMonkey 2.14 Beta 5 (Nov 15, 2012)

  • Plugins can be set to click-to-play (instead of blocked completely) automatically through the blocklist now (bug 773761).
  • MailNews downloaded some IMAP messages over and over again (bug 806760).
  • The displayed feed and feed item list could get cleared when feeds refreshed (bug 787186).
  • If a plugin was shown in click-to-play mode and its area contained a link, keys and shortcuts stopped working (bug 806136).
  • The legacy User Agent string (containing Gecko/20100101) is now used for some possibly-broken online banking sites (bug 809517).

New in SeaMonkey 2.14 Beta 4 (Nov 10, 2012)

  • Quoted fields in CSV files could get cropped upon address book import (bug 803835).

New in SeaMonkey 2.14 Beta 3 (Nov 3, 2012)

  • Previewing broken images in Page Info triggered a JavaScript error (bug 806144).
  • The Preferences UI for HTTP Keep-Alive has been removed (bug 804657).
  • Feed previews would stop working when JavaScript was disabled (bug 804411).
  • Missing favicons failed to load (bug 792735).
  • Local IMAP mail files could grow excessively (bug 803843).
  • NNTP error messages were no longer shown (bug 797600).

New in SeaMonkey 2.13.2 (Oct 29, 2012)

  • Security fixes.
  • Edited contacts could not be saved if the address book contained lists (bug 801615).
  • Local IMAP mail files could grow excessively (bug 803843).

New in SeaMonkey 2.14 Beta 1 (Oct 23, 2012)

  • Features:
  • Added support for new light coloring on Mac OS X (bug 771284, bug 783822).
  • The MailNews message storage scheme now supports Gmail IMAP extensions X-GM-MSGID (unique message ID), X-GM-THRID (thread ID) and X-GM-LABELS (labels) in addition to XLIST (bug 721316).
  • Clicking the offline error page Try Again button goes online again now (bug 782892).
  • The mouse wheel Preferences pane has been rewritten (bug 782143). "Number of messages" and "Size on disk" are now shown in Folder Properties (bug 768621).
  • A Set Desktop Background dialog has been implemented (bug 632585).
  • Fixes:
  • Edited contacts could not be saved if the address book contained lists (bug 801615).
  • If a folder renaming fails during the compact process, removing folder files should be avoided now (bug 674742).
  • The feed validator failed to work with locations that need to be encoded (bug 789053).
  • Messages could show wrong content (body text) after a move to another folder (bug 790912).
  • Feeds that did not provide a last modified date failed to work (bug 790534).
  • Resetting Sync now handles add-ons properly (bug 792990).
  • All bookmarks were deleted and reset to default bookmarks if all bookmarks-*.json backup files were deleted (bug 779716).
  • The highlight behind the selected search term in the Filter Rules, Search Messages and Search Addresses windows has been removed (bug 202036).
  • The "Reply with template" filter action now gets hidden when no usable templates exist (bug 300930).
  • An ID has been added to the Web Development menu separator to make it easier for extensions to hook into the Tools menu (bug 785581).
  • The account manager no longer permanently disables unrecognized extension-added accounts (bug 592710).
  • Moving/copying feed subscriptions could stop downloads from happening (bug 781871).
  • The number of actions in the Filter Rules window is now unlimited (bug 778324).
  • Storing junk filter settings could fail for deferred email account due to invalid spamActionTargetAccount/Folder preferences (bug 536768).
  • The account manager Return Receipts pane now includes a Global Preferences button (bug 360891).
  • Uploading files larger than 2GB failed (bug 215450).
  • The display of the Sidebar Tabs menu button has been improved (bug 780278).
  • A delete confirmation dialog has been added to the MailNews Identity list editor (bug 360926).
  • If there is no sort order on an address book column, the first click on header now sorts ascending (bug 541934).
  • PDF attachments could not be opened from certain mails (bug 659355).
  • The compose window progress dialog now better differentiates between sending and saving of a message (bug 255050).
  • Support for closing inactive databases (folders). has been added in order to help improve memory footprint and file handle limit issues (bug 770559).
  • Double clicking a column header in the History window opened the selected history item (bug 776052).
  • The Most visited list on the Bookmarks Toolbar could contain repeat entries (bug 765689).
  • The layout of elements in the Filter Rules window now uses the space available in the dialog more efficiently and consistently (bug 743974).
  • Set Desktop Background now works with GNOME (bug 774130, bug 779300).
  • Move, Copy and Delete to Local Folders performed poorly with data stored on a network file system (bug 769346).

New in SeaMonkey 2.13.1 (Oct 13, 2012)

  • Security fixes.

New in SeaMonkey 2.13 (Oct 10, 2012)

  • JavaScript responsiveness has been improved through incremental garbage collection
  • CSS3 Animations, Transitions, Transforms and Gradients have been unprefixed
  • MD5 is no longer supported as a hash algorithm in digital signatures
  • The Opus codec is now support by default
  • The reverse CSS3 animation direction has been implemented
  • Per tab reporting is now available in about:memory
  • Fixed several stability issues

New in SeaMonkey 2.13b6 Beta (Oct 6, 2012)

  • Sniffing for feeds could lead to a crash (bug 794067).
  • The Bookmarks Manager Tools/Import HTML wizard had stopped working (bug 793425).
  • Bookmarks could get deleted and reset to default if bookmarks-*.json were deleted (bug 779716).
  • Selecting multiple PGP/MIME encrypted messages could lead to a crash (bug 795707).
  • Compacting folders could prevent the MailNews database cache from getting filled (bug 710056).

New in SeaMonkey 2.13b5 Beta (Sep 30, 2012)

  • Idle MailNews databases were closed too frequently, limiting the benefit of the database cache (bug 793455).
  • Certain MailNews feed subscribes could fail (bug 790554).
  • A deleted message template displayed an incorrect message body (bug 786595).

New in SeaMonkey 2.13b3 Beta (Sep 15, 2012)

  • Fixes:
  • If an image contained errors, the error text was hardly readable against the dark background of the Default Theme (bug 788418).

New in SeaMonkey 2.13b2 Beta (Sep 15, 2012)

  • Fixes:
  • Fixed cases where some notifications were not showing (bug 787833).
  • Fixed "Create Table from Selection" no longer working in Composer (bug 787673).
  • The message location could not be copied if the server protocol was snews (bug 787968).
  • Fixed some common crash scenarios (bug 770262, bug 783479, bug 780908).

New in SeaMonkey 2.13b1 Beta (Sep 3, 2012)

  • Mozilla platform changes:
  • JavaScript responsiveness has been improved through incremental garbage collection.
  • CSS3 Animations, Transitions, Transforms and Gradients have been unprefixed.
  • MD5 is no longer supported as a hash algorithm in digital signatures.
  • The Opus codec is now support by default.
  • The reverse CSS3 animation direction has been implemented.
  • Per tab reporting is now available in about:memory.
  • Fixed several stability issues.
  • Features in Beta 1:
  • The folder pane now shows a popup over folders with unseen messages (bug 505056).
  • Sync can now open links received from other devices in tabs (bug 768950).
  • Fixes in Beta 1:
  • Manual zoom reduction (85%) did not hold and returned to 100% with routine navigation within a website (bug 663886).
  • MDN (return receipts) now work for non-standard headers and the MDN confirmation message now says which addresses the receipt will be sent to (bug 765820).
  • Redirecting and error visits are now properly handled, i.e. not added to global history (bug 772549).
  • The address book white list is now disabled in Junk Settings if adaptive junk mail control is not activated (bug 742503).
  • Address books in text format (text, CSV, tab) which contain non-ASCII display names and email addresses can now be imported properly (bug 145293).
  • Percent encodings on non-ASCII filenames are now decoded when saving a video snapshot (bug 767916).
  • A Preferences pane for Offline Applications has been added (bug 758677).
  • A click-to-play plugins option has been added to Preferences (bug 746110).
  • The wording of the Disk Space compacting option has been enhanced (auto compact does all folders at once) and the compact limit field is now disabled together with compacting (bug 758803).
  • A Layout sub menu has been added to the address book View menu (bug 762704).
  • The vertical space between actions on the MailNews Account Central page is now flexible (bug 681735).
  • Feed pages displayed in MailNews now support click-to-play plugins (bug 765466).
  • Enhanced support for feed enclosures: Support for more than one enclosure per message, Atom support, media:content support (bug 762631).
  • It could happen that MailNews account keys were reused in the same profile, leading to mails showing the wrong account in the Account column (bug 485839).
  • TCP/SSL handshakes are now overlapped with typing in the search box, improving responsiveness (bug 767920).
  • Ampersands did not appear in the Windows biff icon tooltip (bug 767323).
  • The Outlook Express address book can now be imported from a non-default location (bug 124486).
  • Temporary files created by mail composition did not get cleaned up correctly, leading to inability to add images inline (bug 671440).
  • Scrolling/switching to IMAP folders could lead to short hangs (bug 764306).
  • Multipart messages were downloaded entirely for each of their parts (bug 740453).
  • Attachments were sometimes not fully downloaded due to incorrect/smaller RFC822.SIZE set by MS Exchange, GMail and possibly others (bug 92111).
  • A DSN (Delivery Status Notification) option has been added to the Compose Options menu (bug 760644).
  • HTML5 form validation errors are now shown as tooltips (bug 601091).
  • The context menu handled OGG audio as OGV video (bug 763204).
  • The Bookmarks Manager had lost its window icons (bug 763493).
  • An animation is now shown when opening document-like windows on Mac OS X 10.7 Lion (bug 730751).
  • Extensions may now send messages to mailing list recipients via BCC (bug 761803).
  • Address book contacts now include an "Always prefer display name over message header" option (bug 761720).
  • The option when clicking a mail address that is already in the address book now reads "Edit Contact" instead of "Add to Address Book" (bug 131571).
  • When importing an address book as CSV, the dialog description pushed all buttons off screen (bug 762636).
  • Messages with undefined content type were incorrectly forwarded as attachment (bug 745919).
  • The List all Tabs menu now shows tabs that scrolled off screen in italics (bug 663343).

New in SeaMonkey 2.12 (Aug 29, 2012)

  • Added support for SPDY networking protocol v3.
  • Implemented WebGL enhancements, including compressed textures for better performance.
  • Optimized memory usage for add-ons.
  • Implemented the CSS word-break property.
  • Implemented high precision event timer.
  • HTML5: Added native support for the Opus audio codec.
  • HTML5: Added support for the source element media attribute.
  • HTML5: Added support for the audio element and video element played attribute.
  • Fixed several stability issues.

New in SeaMonkey 2.12 Beta 2 (Aug 3, 2012)

  • SeaMonkey-specific changes:
  • Plugin instances can now be enabled individually in Click-to-Play Plugins mode.
  • Mozilla platform changes:
  • Added support for SPDY networking protocol v3.
  • Implemented WebGL enhancements, including compressed textures for better performance.
  • Optimized memory usage for add-ons.
  • Implemented the CSS word-break property.
  • Implemented high precision event timer.
  • HTML5: Added native support for the Opus audio codec.
  • HTML5: Added support for the source element media attribute.
  • HTML5: Added support for the audio element and video element played attribute.
  • Fixed several stability issues.

New in SeaMonkey 2.12 Beta 1 (Jul 23, 2012)

  • Major Changes:
  • Plugin instances can now be enabled individually in Click-to-Play Plugins mode (bug 756025).
  • Features:
  • Undo Add to Dictionary has been added (bug 715410).
  • Favicons have been added to back/forward and history (Go) menus (bug 751922).
  • Windows jump list entries support favicons now (bug 701432).
  • Google search is now using HTTPS (bug 567518).
  • Fixes:
  • Select all, Copy on the about: page did not paste correctly (bug 764862).
  • Trying to import a text address book could cause the description to push all buttons off screen (bug 762636).
  • Importing address books that contained a quoted string could crash the application (bug 474756).
  • (US English) accesskeys in the Compact Folders dialog are now ambiguous (bug 757425).
  • The "For at most X days" field in server settings is now checked for numeric values (bug 755518).
  • Feed OPML import/export has been improved (bug 750292).
  • The Build Identifier was missing from the about: page (bug 752797).
  • URLs appearing in the Page Info Links tab can now be opened in the browser (bug 620997).
  • Bad offline operations could prevent IMAP folders from updating (bug 754865).
  • Temporary files were not removed while sending (bug 299655).
  • New Tab preference Last Page Visited loaded the last visited page instead of the currently viewed one (bug 726415).
  • The "Check for new articles every X minutes" field in RSS account settings is now checked for numeric values and disabled when not needed (bug 755454).
  • Attachments that cannot be displayed inline were not shown in the attachment pane (bug 747770).
  • Partially downloaded message were sometimes considered a duplicate message (bug 714090).
  • Importing a .vcf (vCard) with empty lines did not work (bug 603265).
  • Image zoom (Page zoom) was reset when switching tabs (bug 721474).
  • When receiving a new email, the notification did not display the email address of the sender when he had no name (bug 684865).
  • The case of the server name in Account Settings could not be changed (bug 346263).
  • The account name could be corrupted due to improper updating when the user or server name changed (bug 720199).
  • Messages could be lost or corrupted if the network connection dropped while moving mails from an IMAP mail folder to a local mail folder (bug 522675).
  • Maildir handling of temporary files for IMAP offline store and notifications for moved/deleted local messages with Maildir have been fixed (bug 748807).
  • The Location Bar did not revert back to the correct URL when the user entered text then shift-middle clicked Go to open the location in a new tab (bug 752336).
  • Back/forward history navigation did not clear the old tab favicon (bug 749893).
  • Switching the profile now prompts to save the session (bug 658280).
  • After deleting an account in the Account Manager, the next account is now selected (bug 58713).
  • Account central is now displayed when no default account or no accounts are setup (bug 720661).
  • Support for closing inactive databases (mail folders) has been added (bug 723248).
  • A new filter is now inserted at the current position / above the selected filter (bug 103684).
  • Filters did not save if Tags Is Empty was set (bug 653859).
  • The Add/Remove Action buttons on the filter editor were missing tooltips and accesskeys (bug 742472).
  • The Account Settings Junk Settings panel has been reworked (bug 397197).
  • The scary message about multiple SMTP servers on Account Settings has been reworked (bug 391061).
  • The splitter in the MailNews Search dialog could get collapsed completely (bug 297006).

New in SeaMonkey 2.11 (Jul 17, 2012)

  • SeaMonkey-specific changes:
  • A click-to-play option (off by default for now) has been implemented for plugins.
  • Mozilla platform changes:
  • The Pointer Lock API has been implemented.
  • A new API to prevent your display from sleeping is available.
  • New text-transform and font-variant CSS improvements have been made for Turkic languages and Greek.
  • Fixed several stability issues.

New in SeaMonkey 2.10.1 (Jun 18, 2012)

  • SeaMonkey-specific changes:
  • The domain name is highlighted in the location bar by default now, configurable in Preferences.
  • The amount of tabs to be restored concurrently can be configured in Preferences now.
  • News username and password auth dialogs have been combined and show for which server the prompt is now.
  • Mozilla platform changes:
  • The new minimum supported Windows version is now XP SP2, Windows 2000 support has been dropped.
  • The SPDY protocol now enabled by default for faster browsing on supported sites
  • The column-fill CSS property has been implemented.
  • Experimental support for ECMAScript 6 Map and Set objects has been implemented.
  • Support for the CSS3 background-position property extended syntax has been added.
  • The :invalid pseudo-class can now be applied to the element.
  • The CSS turn unit is now supported.
  • Fixed several stability issues.

New in SeaMonkey 2.10 Beta 3 (Jun 4, 2012)

  • Drag&Drop of (e.g.) tabs to bookmarks had stopped working (bug 754405).

New in SeaMonkey 2.10 Beta 1 (May 14, 2012)

  • Fixed several stability issues.

New in SeaMonkey 2.9.1 (May 1, 2012)

  • SeaMonkey-specific changes:
  • The File and Move Bookmarks dialogs are resizable now.
  • HTML5 videos that do not start automatically show a large play button now.
  • Add-ons Sync can now be configured without the Add-ons Sync Prefs add-on.
  • Pasting a URL from the clipboard into the Download Manager window will download it.
  • Plugins can be disabled for the whole suite now in addition to Mail & Newsgroups only.
  • Mozilla platform changes:
  • View Source now has line numbers.
  • Line breaks are now supported in the title attribute.
  • Find in Page search results are scrolled into view now.
  • The column-fill CSS property has been implemented.
  • Support for the text-align-last CSS property has been added.
  • Experimental support for ECMAScript 6 Map and Set objects has been implemented.
  • Fixed several stability issues.

New in SeaMonkey 2.9b1 Beta (Mar 27, 2012)

  • SeaMonkey-specific changes:
  • The File and Move Bookmarks dialogs are resizable now.
  • HTML5 videos that do not start automatically show a large play button now.
  • Add-ons Sync can now be configured without the Add-ons Sync Prefs add-on.
  • Pasting a URL from the clipboard into the Download Manager window will download it.
  • Plugins can be disabled for the whole suite now in addition to Mail & Newsgroups only.
  • Mozilla platform changes:
  • View Source now has line numbers.
  • Line breaks are now supported in the title attribute.
  • Find in Page search results are scrolled into view now.
  • The column-fill CSS property has been implemented.
  • Support for the text-align-last CSS property has been added.
  • Experimental support for ECMAScript 6 Map and Set objects has been implemented.
  • Fixed several stability issues.

New in SeaMonkey 2.8 (Mar 14, 2012)

  • New Add-ons Sync engine (install the Add-ons Sync Prefs add-on to enable it in Preferences)
  • Support for migrating from old profiles (before SeaMonkey 2.0) has been dropped (bug 689437).

New in SeaMonkey 2.8 Beta 6 (Mar 9, 2012)

  • A Tabs Toolbar has been added for Thunderbird and Lightning compatibility (bug 721327).

New in SeaMonkey 2.7.2 (Feb 18, 2012)

  • Add-ons are compatible by default now, provided they are declared compatible with SeaMonkey version 2.1 or better (bug 702792).
  • A major MailNews bug has been fixed: Under certain conditions, entire newsgroups were marked as unread and authentication data (user name and password) was lost (bug 695309).
  • Anti-Aliasing for WebGL is now implemented
  • CSS3 3D-Transforms are now supported
  • New element for bi-directional text isolation, along with supporting CSS properties
  • Added IndexedDB APIs to more closely match the specification.
  • Fixed several stability issues.

New in SeaMonkey 2.8 Beta 2 (Feb 10, 2012)

  • SeaMonkey-specific changes:
  • Support for migrating from old profiles (before SeaMonkey 2.0) has been dropped (bug 689437).
  • Mozilla platform changes:
  • The CSS text-size-adjust property is now supported.
  • The outerHTML property is now supported on HTML elements.
  • View source syntax highlighting now uses the HTML5 parser (see bug 482921).
  • SPDY protocol support for faster page loads is now testable.
  • XMLHttpRequest now supports HTML parsing.
  • Files can now be stored in IndexedDB (see bug 661877).
  • Websockets has now been unprefixed.
  • Redesigned media controls for HTML5 video.
  • Fixed several stability issues.

New in SeaMonkey 2.8 Beta 1 (Feb 4, 2012)

  • Major Changes:
  • New Add-ons Sync engine (install the Add-ons Sync Prefs add-on to enable it in Preferences)
  • Fixes:
  • The Page Info Media tab includes information about video streams from video tags now (bug 485686).
  • Support for migrating from old profiles (before SeaMonkey 2.0) has been dropped (bug 689437).
  • Saving the last download directory per site can now be disabled by creating a pref called browser.download.lastDir.savePerSite and setting it to false (bug 702748).
  • The profile path is now shown in Profile Manager tooltips (bug 670561).
  • Middle-clicking the Go button opens a new tab now (bug 708640).
  • Untitled Composer pages are now numbered (bug 102275).
  • The account wizard allows to enter port information now (bug 78357).
  • Message Filters feature a "Mark as unread" action now (bug 376546).
  • DSPAM, Bogofilter and POPFile options have been added to "Trust junk mail headers set by" (bug 687520).
  • CPU load in the Download Manager UI during downloads has been reduced (bug 701051).
  • View Source is now enabled for .eml files (bug 704016).
  • It is now possible to import/save e-mail messages from .eml text files to folders (bug 700899).

New in SeaMonkey 2.6.1 (Dec 23, 2011)

  • SeaMonkey-specific changes:
  • Added support for the HTML5 "context menu" feature (contextmenu attribute)
  • Added Print Preview support to Composer
  • Added update channel indication to About SeaMonkey page (about:)
  • Mozilla platform changes:
  • Added Type Inference, significantly improving JavaScript performance
  • Added support for querying Do Not Track status via JavaScript
  • Added support for font-stretch
  • Improved support for text-overflow
  • Improved standards support for HTML5, MathML, and CSS
  • Fixed several stability issues

New in SeaMonkey 2.6 Beta 4 (Dec 15, 2011)

  • Mozilla platform changes:
  • Added Type Inference, significantly improving JavaScript performance
  • Added support for querying Do Not Track status via JavaScript
  • Added support for font-stretch
  • Improved support for text-overflow
  • Improved standards support for HTML5, MathML, and CSS
  • Fixed several stability issues

New in SeaMonkey 2.6 Beta 3 (Dec 10, 2011)

  • Major changes:
  • Support for the HTML5 "context menu" feature (contextmenu attribute) was added (bug 702019).
  • Print Preview is now available in Composer (bug 21432).
  • About SeaMonkey (about:) shows the update channel now (bug 677010).
  • Fixes:
  • The BEAST work-around was disabled for this release (bug 702111).
  • RSS feed stores could get out of date (bug 687430).
  • Emails with an "attachment" body appeared blank with no option to save the attachment (bug 701261).

New in SeaMonkey 2.6 Beta 2 (Dec 5, 2011)

  • SeaMonkey-specific changes:
  • Added support for the HTML5 "context menu" feature (contextmenu attribute)
  • Added Print Preview support to Composer
  • Added update channel indication to About SeaMonkey page (about:)
  • Mozilla platform changes:
  • Added Type Inference, significantly improving JavaScript performance
  • Added support for querying Do Not Track status via JavaScript
  • Added support for font-stretch
  • Improved support for text-overflow
  • Improved standards support for HTML5, MathML, and CSS
  • Fixed several stability issues

New in SeaMonkey 2.6 Beta 1 (Nov 24, 2011)

  • SeaMonkey-specific changes:
  • Added Print Preview support to Composer
  • Added update channel indication to About SeaMonkey page (about:)
  • Mozilla platform changes:
  • Added Type Inference, significantly improving JavaScript performance
  • Added support for querying Do Not Track status via JavaScript
  • Added support for font-stretch
  • Improved support for text-overflow
  • Improved standards support for HTML5, MathML, and CSS
  • Fixed several stability issues

New in SeaMonkey 2.5 Beta 1 (Oct 3, 2011)

  • Users now have more control over their add-ons. Upon upgrade, activation of third-party add-ons needs to be confirmed explicitly.
  • Improvements to HTML5 media elements and added support for new media APIs to improve the overall performance of video and audio
  • Additional support for HTML5 technologies, including the crossorigin attribute and insertAdjacentHTML
  • Updates to WebSockets
  • Support for CORS for WebGL textures
  • Hyphenation is now supported in many more languages
  • Fixed several stability issues

New in SeaMonkey 2.4.1 (Sep 30, 2011)

  • Mozilla platform changes:
  • Drastically improved memory use
  • Added a new rendering backend to speed up Canvas operations on Windows systems
  • Bookmark and password changes now sync almost instantly when using Sync
  • Added support for text-overflow: ellipsis
  • Added support for the Web Timing specification
  • Fixed several stability issues=

New in SeaMonkey 2.4 Beta 3 (Sep 24, 2011)

  • The location bar pop-up was not shrinking anymore on Linux (bug 685457).
  • The ability to write CSS rules for (un)read tabs had been lost (bug 564100).
  • Setting an address book in MailNews filters was broken (bug 683716).
  • Page Info did not use the same last directory for single and multiple file saves (bug 664832).

New in SeaMonkey 2.4 Beta 2 (Sep 24, 2011)

  • An Ampersand (&) on the URL broke Translate Page (bug 683422).
  • 'news:' URIs could not be opened in a new tab/window (bug 219821).
  • Tags were lost with condstore servers (bug 678148).

New in SeaMonkey 2.4 Beta 1 (Sep 24, 2011)

  • Some parts of Sync setup and preferences (e.g. Change Password and My Sync Key) were not working anymore (bug 679773).
  • Bookmark This Group of Tabs was greyed out after restart with session restore (bug 677539).
  • Some icons in the Add-ons Manager were missing with the Modern theme (bug 666873).

New in SeaMonkey 2.4 (Sep 24, 2011)

  • Drastically improved memory use
  • Added a new rendering backend to speed up Canvas operations on Windows systems
  • Bookmark and password changes now sync almost instantly when using Sync
  • Added support for text-overflow: ellipsis
  • Added support for the Web Timing specification
  • Fixed several stability issues

New in SeaMonkey 2.3.3 (Sep 7, 2011)

  • Removes trust exceptions for certificates issued by Staat der Nederlanden.

New in SeaMonkey 2.3.2 (Aug 31, 2011)

  • (SeaMonkey 2.3.2) - Revoked the root certificate for DigiNotar due to fraudulent SSL certificate issuance (see bug 682927 and the security advisory)
  • Several fixes when importing email from Microsoft Outlook

New in SeaMonkey 2.3 (Aug 17, 2011)

  • Added support for the latest draft version of WebSockets with a prefixed API
  • Added support for EventSource / server-sent events
  • Added support for window.matchMedia
  • Fixed several stability issues.
  • Fixed several security issues.
  • Fixed several high visibility usability issues from SeaMonkey 2.2.

New in SeaMonkey 2.3 Beta 2 (Aug 2, 2011)

  • Fixes:
  • The Enable Java option has been removed from Preferences. Like any other plugin, the Java plugin can be enabled or disabled from the Add-ons Manager (bug 512378).
  • The search engine icon in the Location bar was missing (bug 663919).
  • Opening certain message attachments did not work anymore (bug 665313).
  • Some feed entries could not be viewed anymore (bug 662855).

New in SeaMonkey 2.2 (Jul 8, 2011)

  • Major changes:
  • Archive options can now be changed from the Copies & Folders Account Settings pane (Bug 607295).
  • Fixes:
  • Opening message attachments did not work anymore (Bug 665313).
  • All LSOs (Flash cookies) were cleared when clearing only the cache (Bug 665336).
  • The Composer status bar displayed an incorrect status (Bug 657214).
  • Email senders were displayed as quoted when the name in From was quoted (Bug 652318).
  • Opening messages from Advanced Search results did not work anymore (bug 660882).
  • The Archives folder was rendered inaccessible after archiving a news posting (bug 660845).
  • On the first wizard page for creating a new Sync account, the Next button was disabled until you switched the server type and back (bug 664569).
  • Mozilla platform changes:
  • CSS Animations are now supported.
  • Improved canvas, JavaScript, memory, and networking performance.
  • Improved standards support for HTML5, XHR, MathML, SMIL, and canvas.
  • Improved spell checking for some locales.
  • WebGL content can no longer load cross-domain textures.
  • Background tabs have setTimeout and setInterval clamped to 1000ms to improve performance.

New in SeaMonkey 2.2 Beta 1 (Jun 23, 2011)

  • Archive options can now be changed from the Copies & Folders Account Settings pane.
  • Major Changes:
  • Opening messages from Advanced Search results did not work anymore (bug 660882).
  • The Archives folder was rendered inaccessible after archiving a news posting (bug 660845).
  • On the first wizard page for creating a new Sync account, the Next button was disabled until you switched the server type and back (bug 664569).
  • Mozilla platform changes:
  • CSS Animations are now supported.
  • Improved canvas, JavaScript, memory, and networking performance.
  • Improved standards support for HTML5, XHR, MathML, SMIL, and canvas.
  • Improved spell checking for some locales.
  • WebGL content can no longer load cross-domain textures.
  • Background tabs have setTimeout and setInterval clamped to 1000ms to improve performance.

New in SeaMonkey 2.1 (Jun 10, 2011)

  • Sync (f.k.a. Weave) is now included directly in SeaMonkey. Sync allows you to keep your browsing history, passwords, bookmarks, preferences and tabs in sync across different devices (computers) in a secure way.
  • SeaMonkey windows can now be themed with Personas (lightweight themes).
  • The bookmarks system has been reworked to use the Places framework shared with Firefox (already used for history data in SeaMonkey 2.0), including a new Bookmark Manager and fast bookmarking button in the location bar.
  • Find in Page now works with a toolbar instead of a modal window.
  • OpenSearch plugins are now supported and the default for web search.
  • An optional search bar (including suggestions if the search engine supports it) is available in browser toolbar customization, and an engine manager for OpenSearch is available.
  • More toolbar widgets are now customizable.
  • The new Add-ons Manager opens directly in the browser now and has received a major facelift.
  • The new Data Manager now unifies cookie, permission, password, and form data management.
  • Flash cookies (LSOs) will now be removed when using Clear Private Data / Cookies (requires Flash Player 10.3 or better).
  • Plugin crashes do not take down the whole application anymore since plugins run in their own processes now.
  • Plugins now work in feeds shown in MailNews windows.
  • The feed preview UI and the Helper Applications preferences can now detect the system's default feed reader and use it.
  • Page zoom is being remembered on a site-specific basis now.
  • The browser tab bar is now scrollable to cope with tab overflow. This includes an "All Tabs" navigation button to quickly list all open tabs.
  • You can now drag and drop downloads, e.g. from the Download Manager to the desktop.
  • SeaMonkey now shows "doorhangers" for notifications like remembering log-in passwords or after installing an extension.
  • The new DoNotTrack HTTP header is supported (configurable in Preferences).
  • A page with Troubleshooting Information (about:support) and the option to restart in Safe Mode are now available from the Help menu.
  • Loading the URL about:memory now shows how much memory is used by different parts of SeaMonkey.
  • SeaMonkey should now support more websites that previously appeared to only work with Firefox (configurable in Preferences).
  • Built-in extensions (ChatZilla, JavaScript Debugger and DOM Inspector) are now installed into the profile.
  • News messages can now be deleted from local storage.
  • Cascaded Session Restore improves restoring large browsing sessions.
  • SeaMonkey now uses Omnijar which results in fewer installed files, less fragmentation and better startup time.

New in SeaMonkey 2.1 RC 1 (May 13, 2011)

  • Contains the following major changes relative to SeaMonkey 2.0.14:
  • Sync (f.k.a. Weave) is now included directly in SeaMonkey. Sync allows you to keep your browsing history, passwords, bookmarks, preferences and tabs in sync across different devices (computers) in a secure way.
  • SeaMonkey windows can now be themed with Personas (lightweight themes).
  • The bookmarks system has been reworked to use the Places framework shared with Firefox (already used for history data in SeaMonkey 2.0), including a new Bookmark Manager and fast bookmarking button in the location bar.
  • Find in Page now works with a toolbar instead of a modal window.
  • OpenSearch plugins are now supported and the default for web search.
  • An optional search bar (including suggestions if the search engine supports it) is available in browser toolbar customization, and an engine manager for OpenSearch is available.
  • More toolbar widgets are now customizable.
  • The new Add-ons Manager opens directly in the browser now and has received a major facelift.
  • The new Data Manager now unifies cookie, permission, password, and form data management.
  • Plugin crashes do not take down the whole application anymore since plugins run in their own processes now.
  • Plugins now work in feeds shown in MailNews windows.
  • The feed preview UI and the Helper Applications preferences can now detect the system's default feed reader and use it.
  • Page zoom is being remembered on a site-specific basis now.
  • The browser tab bar is now scrollable to cope with tab overflow. This includes an "All Tabs" navigation button to quickly list all open tabs.
  • You can now drag and drop downloads, e.g. from the Download Manager to the desktop.
  • SeaMonkey now shows "doorhangers" for notifications like remembering log-in passwords or after installing an extension.
  • The new DoNotTrack HTTP header is supported (configurable in Preferences).
  • A page with Troubleshooting Information (about:support) and the option to restart in Safe Mode are now available from the Help menu.
  • Loading the URL about:memory now shows how much memory is used by different parts of SeaMonkey.
  • SeaMonkey should now support more websites that previously appeared to only work with Firefox (configurable in Preferences).
  • Built-in extensions (ChatZilla, JavaScript Debugger and DOM Inspector) are now installed into the profile.
  • News messages can now be deleted from local storage.
  • Cascaded Session Restore improves restoring large browsing sessions.
  • SeaMonkey now uses Omnijar which results in fewer installed files, less fragmentation and better startup time.
  • Platform-specific changes:
  • Mac OS X 10.4 "Tiger" and PPC support was dropped, 64-bit support for 10.6 "Snow Leopard" was added.
  • On Linux, desktop notifications (e.g. mail alerts, finished downloads) show up in the native environment.
  • Windows 7 Jump Lists support was added.
  • Download progress is now shown in the Windows 7 taskbar.
  • Mozilla platform changes:
  • Better performance on startup and shutdown, and memory usage improvements.
  • Protection from out-of-date plugins has been added.
  • Text areas in web forms are now resizable.
  • CSS :visited selectors have been changed to block ways that websites can quickly check a user's browsing history.
  • The WOFF format for downloadable website fonts is now supported.
  • SMIL animation in SVG is now supported.
  • New CSS attributes such as gradients, background sizing, and pointer events have been implemented.
  • A new HTML5 parser is used for all HTML documents.
  • New DOM and HTML5 features including the Drag & Drop API and the File API are now supported.
  • JS-ctypes support has been improved, allowing in-application JavaScript code to access native system libraries.
  • HTML5 video can now be viewed full screen and supports both the WebM format and the "buffered" property.
  • Web developers can animate content using CSS Transitions.
  • The W3C Indexed Database API is now available to websites.
  • JavaScript is faster than ever with the new JägerMonkey engine.
  • Support for WebGL, Direct2D and Direct3D acceleration on Windows has been added (see about:support for support and Preferences for configuration).
  • The HSTS security protocol and the proposed Audio Data API are available.
  • OpenType support has been improved.
  • HTML5 Forms API support has been added.

New in SeaMonkey 2.0.14 (Apr 29, 2011)

  • Security fixes
  • Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

New in SeaMonkey 2.0.13 (Mar 23, 2011)

  • Security fixes
  • Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

New in SeaMonkey 2.0.12 (Mar 3, 2011)

  • Security fixes
  • Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

New in SeaMonkey 2.0.11 (Dec 10, 2010)

  • Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey
  • Security fixes:
  • MFSA 2010-84 XSS hazard in multiple character encodings
  • MFSA 2010-83 Location bar SSL spoofing using network error page
  • MFSA 2010-82 Incomplete fix for CVE-2010-0179
  • MFSA 2010-81 Integer overflow vulnerability in NewIdArray
  • MFSA 2010-80 Use-after-free error with nsDOMAttribute MutationObserver
  • MFSA 2010-79 Java security bypass from LiveConnect loaded via data: URL meta refresh
  • MFSA 2010-78 Add support for OTS font sanitizer
  • MFSA 2010-77 Crash and remote code execution using HTML tags inside a XUL tree
  • MFSA 2010-76 Chrome privilege escalation with window.open and element
  • MFSA 2010-75 Buffer overflow while line breaking after document.write with long string
  • MFSA 2010-74 Miscellaneous memory safety hazards (rv:1.9.2.13/ 1.9.1.16)

New in SeaMonkey 2.0.10 (Oct 29, 2010)

  • New Features and Fixes:
  • Platform: Interleaving document.write and appendChild can lead to duplicate text frames and overrunning of text run buffers (Bug 607222).

New in SeaMonkey 2.0.9 (Oct 20, 2010)

  • Security fixes
  • Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

New in SeaMonkey 2.0.8 (Sep 16, 2010)

  • Fixes for a startup crash seen by some people after a 2.0.7 update
  • Font faces in HTML signatures are allowed again

New in SeaMonkey 2.0.6 (Jul 20, 2010)

  • Security fixes
  • Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey

New in SeaMonkey 2.0.5 (Jun 22, 2010)

  • Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey
  • New available languages: British English and Simplified Chinese
  • Some updates to the in-product help content

New in SeaMonkey 2.0.4 (Mar 30, 2010)

  • Browser:
  • Closing browser / switching profile keeps and later restores state / open tabs and history (Bug 486696)
  • MailNews:
  • Null pointer dereference or redundant check in mailnews/mime/src/mimei.cpp. (Bug 532108)
  • gloda indexes while offline, if we startup without a network connection (Bug 533776)
  • Autocomplete - primary email address no longer appears before additional email address (now sorted alphabetically) (Bug 543088)
  • Port Bug 410996 - Answering a news article in a saved search folder not stored under a news account creates mail reply instead of follow-up (Bug 546040)
  • Reply button doesn't launch mail composition window. (Bug 549802)
  • crash [@ nsMsgSearchValidityTable::GetAvailable(int, int, int*)] in matchAll filters using saved search or updating filters (Bug 514945)
  • crash [@ nsImapMailFolder::UpdateImapMailboxInfo(nsIImapProtocol*, nsIMailboxSpec*)] (Bug 531792)
  • Too many .msf file open with many third level folders and Show only subscribed folders unchecked/disabled (Bug 549794)
  • WARNING: goofy tree selection state: two ranges are adjacent!: 'endFirstRange == startRange' with test_delete_multiple_messages_with_first_selected_message_open in test-deletion-with-multiple-displays.js (Bug 540252)
  • crash [@ nsMsgXFViewThread::AddHdr(nsIMsgDBHdr*, int, unsigned int&, nsIMsgDBHdr**)] manipulating messages in virtual folder (Bug 539784)
  • crash [@ NS_strlen(unsigned short const*)] - [@ nsImapProtocol::ShowProgress] with IMAP and Galician locale. (Bug 506669)
  • ChatZilla:
  • Langpack incompatible with SM version > 2.0 (Bug 540842)
  • Certificates & Security Features:
  • Update Mozilla stable branches to NSS 3.12.6 and minimal support for RFC 5746 (Bug 545755)
  • General:
  • [SeaMonkey] FTP file upload not working (Bug 467524)
  • Update Help on Popup Windows preferences (Bug 543332)
  • Remove repetitions (the, of) from Help (Bug 543336)
  • Turning Encryption On and Off is no longer an option, remove it from Help (Bug 543340)
  • Remove last traces of Quick Launch from Help (Bug 545765)
  • Mac OS X:
  • Crash [@ nsHTMLReflowState::CalculateHypotheticalBox] with MathML, position:fixed, tables (Bug 469861)
  • nsIWifiMonitor causes deadlocks in OS X 10.6.x (Bug 548796)
  • [10.5] Crash on attempt to print to unreachable HP printer [@ objc_msgSend - HPSmartPrint@0xe4cc] (Bug 396680)
  • [10.5] Firefox crashing when switching paper sizes after preview [@ objc_msgSend] [@ PrintingCocoaPDEs@0x10686] (Bug 495567)
  • [10.5] Crash [@objc_msgSend | CanonIJPDE@0x1531e] (Bug 519451)
  • [10.5] Print dialog fails the second time I run it. [@objc_msgSend | _nsnote_callback ] (Bug 525277)
  • crash replying to message that has attached eml [@ strlen | nsDateTimeFormatMac::FormatPRExplodedTime(nsILocale*, int, int, PRExplodedTime const*, nsAString_internal&)] (Bug 522561)
  • Closing two tabs on yelp.com in rapid succession crashes Camino [@ nsCOMPtr_base::assign_from_qi(nsQueryInterface, nsID const&) | nsDocShell::FirePageHideNotification(int) ] [@ nsDocShell::FirePageHideNotification(int) ] [@ @0x0 | nsDocShell::Destroy() ] (Bug 541743)
  • Apple LiGothic rendering failure when encounter specific characters (Bug 532346)
  • Compiling:
  • client.py should error out early if wrong python version (Bug 537571)
  • [Tracking] Resync' configure.in between c-1.9.1 and m-1.9.1 (Bug 496236)
  • Port |Bug 473411 - the rule for DIST_FILES should create dist/bin| to c-c (Bug 543294)
  • Port |Bug 422986 -- make -j2 -f client.mk profiledbuild fails| to comm-central (Bug 543296)
  • Remove MOZ_VALGRIND from comm-central (Bug 545133)
  • Port |Bug 495224 - Builds involving symlinks in the source dir fail to find config/config.mk| to comm-central (Bug 545594)
  • Port |Bug 509319 - Enable FIPS throws uncaught exception in toggleFIPS| to comm-central (Bug 548210)
  • Missing python version check in configure (Bug 548670)
  • Require python >= 2.4 to build Mozilla (and >=2.5 on Windows hosts) (Bug 427750)
  • Fix bsdiff linking for builds compiled with CROSS_COMPILE (Bug 535369)
  • Allow client.py network attempts to restart itself in case of failures (Bug 538528)
  • Package new layers library on shared builds (Bug 549390)
  • Hourly/Nightly builds should have some way to see which changeset was used (Bug 474610)
  • Platform:
  • mochitest-plain: test_domWindowUtils.html fails intermittently (Bug 513146)
  • Scrollbars are not being update using dss.enabled (Bug 546941)
  • vorbis_analysis_headerout calls oggpack_writeclear with uninitialized ogb if !v->backend_state (Bug 550184)
  • TM: Severe performance deterioration of String.match with complex regex (Bug 502058)
  • extend nsIINIParser to allow writing INI files (Bug 541594)
  • Update info should allow more html tags through (Bug 503505)
  • Integrate BrowserScope's HTML editor test suite with Mozilla's mochitest framework (Bug 550569)
  • file drop URIs only accidentally work (Bug 549349)
  • Comment out nsw.gov.au in PSL (Bug 547985)
  • nsPluginHost::TrySetUpPluginInstance() can return with the plugin instance owner holding a non initialized instance. (Bug 533030)
  • Hang [@ nsRegion::InsertInPlace] with position:fixed (Bug 541869)
  • Malian registrar (.ml) allows second-level domains (Bug 544319)
  • crash [@ nsHTMLAnchorElement::UnbindFromTree(int, int)] (Bug 540953)
  • Moving FILE_ILLEGAL_CHARACTERS from nsCRT.h to nsCRTGlue.h for frozen linkages (Bug 537967)
  • C++ style comment in C unit modules/plugin/default/unix/npunix.c (Bug 548213)
  • cp932 encoded messages display as garbage (Bug 542823)

New in SeaMonkey 2.0.3 (Feb 17, 2010)

  • Security fixes
  • Fixes for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail & Newsgroups part of SeaMonkey
  • New supported language version: Japanese
  • A problem with Outgoing Server (SMTP) connections after migration from older versions was fixed by disabling stricter security checking and reverting to previous behavior for the moment. (Bug 522633)
  • Cutting and copying text should not be blocked by certain other Windows applications any more. (Bug 525601)
  • Profile migration from 1.x should succeed in more cases on Windows now. (Bug 537525)
  • Language packs from 2.0.3 now continue to work with later SeaMonkey 2.0.x versions. (Bug 544096)
  • Language packs for all locales now don't include dictionaries to avoid licensing conflicts. Dictionaries should be installed from the dictionary add-ons page instead. (Bug 537481)
  • The internal security module has been updated and new certificate authorities were included. (Bug 528277)
  • Opening files from the Mac desktop or Finder should now work even when SeaMonkey is already running.

New in SeaMonkey 2.0.1 (Dec 16, 2009)

  • Security fixes
  • Fixes for a number of non-security-relevant crashes
  • New supported language version: Italian
  • Password manager now continues to work after clearing private data (Bug 521263).
  • The needed parts for supporting the Firebug Add-on (1.5b4 or later) are in place now (Bug 525638).
  • Email count on the Mac OS X dock icon should now be correct (Bug 509163).
  • Multiple smaller fixes in various parts of the platform and the SeaMonkey application.

New in SeaMonkey 2.0 Beta 2 (Sep 14, 2009)

  • Tabbed Mail enables accounts, folders and even single messages to be opened in tabs inside the Mail & Newsgroups window. This feature also enables the Lightning extension to be installed into SeaMonkey for calendering functionality.
  • The default theme on Mac OS X was completely renewed to better fit with the look of Leopard and Snow Leopard.
  • Reopening closed browser windows (Undo Close Window) is now possible.
  • For extension developers, SMILE is introduced, making interfaces known from FUEL and STEEL also available in SeaMonkey.
  • Several improvements were made to the recently rewritten download manager.
  • A large number of small improvements were made across the suite.

New in SeaMonkey 1.1.18 (Sep 8, 2009)

  • MFSA 2009-43 Heap overflow in certificate regexp parsing
  • MFSA 2009-42 Compromise of SSL-protected communication

New in SeaMonkey 2.0 Beta 1 (Jul 22, 2009)

  • The idenctical same browser core and web feature support as Firefox 3.5.1 is in SeaMonkey now, including all security fixes as well as audio/video, downloadable fonts, JIT-compiled Javascript and more.
  • Download manager has been completely reworked, including support for cross-session resumable downloads,
  • Localized Windows/Linux/Mac packages are available now, this Beta features 15 languages officially (two additional ones are experimental) from day 1.
  • Feed preview is available now in the browser and improves feed subscription with different readers, including the internal one in the mail/news component.
  • Support for -new-tab and -new-window command line options was added.
  • Toolbars in the mail and newsgroups window are now fully customizable.
  • Mail archiving is supported now.
  • The Palm Sync Extension has been removed.
  • Feed summary or web page can be chosen from menu entries.
  • Preferences have been added for for signature text, closing standalone message window when using Del and checking for new mail only after opening the MailNews window.

New in SeaMonkey 1.1.17 (Jun 23, 2009)

  • Crash viewing multipart/alternative message with text/enhanced part.
  • JavaScript chrome privilege escalation.
  • Arbitrary code execution using event listeners attached to an element whose owner document is null.
  • SSL tampering via non-200 responses to proxy CONNECT requests.
  • Arbitrary domain cookie access by local file: resources.
  • Crashes with evidence of memory corruption (rv:1.9.0.11).
  • POST data sent to wrong site when saving web page with embedded frame.
  • Same-origin violations when Adobe Flash loaded via view-source: scheme.

New in SeaMonkey 1.1.16 (Apr 9, 2009)

  • Security and stability fixes.
  • XSLT should heap allocate all evalContexts.
  • Exploitable crash in [@txMozillaXSLTProcessor::TransformToDoc ].

New in SeaMonkey 2.0 Alpha 3 / 1.1.15 (Mar 19, 2009)

  • MFSA 2009-10 Upgrade PNG library to fix memory safety hazards
  • MFSA 2009-09 XML data theft via RDFXMLDataSource and cross-domain redirect
  • MFSA 2009-07 Crashes with evidence of memory corruption (rv:1.9.0.7)

New in SeaMonkey 1.1.15 (Mar 19, 2009)

  • Upgrade PNG library to fix memory safety hazards.
  • XML data theft via RDFXMLDataSource and cross-domain redirect.
  • Crashes with evidence of memory corruption (rv:1.9.0.7).

New in SeaMonkey 1.1.14 (Dec 17, 2008)

  • Security and stability fixes.

New in SeaMonkey 2.0 Alpha 2 (Dec 11, 2008)

  • The first step towards customizable toolbars has been made: The icon size and whether to display icons and/or text can be chosen spearately for every major toolbar in in both the browser and MailNews components via their context menu.
  • The MailNews component now includes support for reading RSS and Atom feeds, And the browser detects feeds offered by web pages. Since the support for previewing feeds in the browser has not yet been included, the feed icon at the right end of the URL bar currently is directly invoking subscription to the feed in the MailNews component, if an account for feeds has already been created there.
  • Tracemonkey, the Just-In-Time (JIT) JavaScript compiler, has been enabled for web content by default, resulting in a significant speedup of scripts running on web pages.
  • The Find As You Type functionality has been internally reworked to use the same code behind the scenes as the Firefox find bar, but keeping the function as presented to users unchanged from SeaMonkey 1.1.

New in SeaMonkey 2.0 Alpha 1 (Oct 6, 2008)

  • SeaMonkey switched to Toolkit, the same backend Firefox uses internally. Due to this change SeaMonkey is now much closer to Firefox as far as user profiles, add-ons and functionality of user interface elements are concerned.
  • The default location of user profiles has changed. Legacy profiles, e.g. from SeaMonkey 1.x, are migrated automatically, excluding third-party add-ons (extensions and themes). The old profile will not be touched (instead, copies are made).
  • The new Add-on Manager allows to install, update, disable and remove extensions (add-ons), themes and plugins using the same mechanisms Firefox uses. This should ease extension management and development considerably.
  • Gecko, the rendering engine used in SeaMonkey, has seen many improvements since the version used in the last stable release. Changes range from a better graphics backend (Cairo/Thebes) to improved support for fonts, CSS, DOM and JavaScript. SeaMonkey 2.0 Alpha 1 passes the Acid2 test and most of Acid3.
  • Most of the icons in the default theme have been exchanged for newer images that fit better with the look of modern desktop environments.
  • Support for Windows 95, 98, Me and NT 4 was dropped. GTK 2.10 is now required on Linux/UNIX. Support for Mac OS X 10.3 ("Panther") was also dropped.

New in SeaMonkey 1.1.12 (Sep 24, 2008)

  • 258136 Long HTML page takes very long to load on OS/2
  • 316394 CSS and HTML parsers shouldn't allow high/low surrogates via escapes
  • 316859 undefined symbol in components/libhtmlpars.so
  • 369918 Crash Loading a Saved Search Folder [ nsMsgQuickSearchDBView::OnSearchDone]
  • 380994 Fix for bug 367428 lets through escaped slashes on Linux (windows too on trunk)
  • 385133 Crash due to too much recursion in js_DecompileValueGenerator with watch, setter, delete, generator
  • 392015 Crash of Tb 2.0.0.6, if "Rebuild Index" is executed during compacting folder is inprogess, and loosing mails [@ morkRowObject::SetRow]
  • 417400 Resource Directory Traversal Vulnerability - Mac OS X and Linux Example
  • 420310 unable to display PDF delivered via SSL since Firefox 2.0.0.10
  • 437288 [1.8 branch] Hang involving a for loop turning into a while loop
  • 438288 URI.path one character short after redirect involving fragment
  • 441087 NS_ERROR_XPC_SECURITY_MANAGER_VETO in Greasemonkey JavaScript eval containing object.property
  • 441876 remove UTF-7 from browser encoding menus
  • 445890 XMLHttpRequest.responseXml not accessible from signed remote XUL code
  • 449578 Wrong interpretation of escape sequence in charset iso-2022-kr
  • 449703 [1.8 branch] XBM appears to draw uninitialized memory
  • 450698 The second argument of nsParseNewMailState::AppendMsgFromFile should be PRUint32.
  • 450865 c++ style comment in js/src/jsemit.c
  • 452522 Update SeaMonkey version number on GECKO181_20080827_RELBRANCH_REAL

New in SeaMonkey 1.1.11 (Jul 16, 2008)

  • Security and stability fixes

New in SeaMonkey 1.1.11 (Jul 16, 2008)

  • Security and stability fixes.
  • nsClientAuthRememberService must be refcounted and implement nsISupportsWeakReference
  • 356378 "invalid getter usage" or assertion failure with "var x; x getter= function () { };"
  • 439735 exploitable crash at nsBlockFrame::DrainOverflowLines
  • 439035 Same-origin check in nsXMLHttpRequest::OnChannelRedirect() can be circumvented
  • 440308 XSS by using XMLHttpRequest and onreadystatechange handler
  • 443182 Update SeaMonkey version number on GECKO181_20080702_RELBRANCH

New in SeaMonkey 1.1.10 (Jul 2, 2008)

  • Security and stability fixes

New in SeaMonkey 1.1.10 (Jul 2, 2008)

  • Security and stability fixes

New in SeaMonkey 1.1.9 (Mar 26, 2008)

  • Security and stability fixes

New in SeaMonkey 1.1.8 (Feb 8, 2008)

  • Security and stability fixes.