XNote++ is a Thunderbird and SeaMonkey add-on that allows you to create persistent sticky notes associated to your mails.
In other words, XNote allows you to create a note for each mail. This way, you can add for example the phone number of that contact or when you have to contact the sender back.
XNote++ is cross-platform and it works on Mac OS X, Windows and Linux.
Here are some key features of "XNote++":
· Add notes to messages
· Custom column to mark messages with notes.
· Highlight messages with notes.
· Resizeable notes
· Translated into Dutch, English, French, Galician, German, Italian, and Japanese.
· Thunderbird 3.0 and later or
· SeaMonkey 2.0 and later
What's New in This Release: [ read full changelog ]
· Bugfix: text area in notes window no longer grabbed the focus.