ShowIP is a handy Firefox, SeaMonkey and Thunderbird add-on that shows the IP address of the current page in the status bar.
ShowIP also allows querying custom services by IP (right mouse button) and Hostname (left mouse button), like whois, netcraft.
Additionally you can copy the IP address to the clipboard.
ShowIP is cross-platform and it works on Mac OS X, Windows and Linux.
· Firefox 3.0 and later or
· Thunderbird 1.0 and later or
· SeaMonkey 1.0 and later
What's New in This Release: [ read full changelog ]
· Fixed bug in private browsing mode
· Added support for 'per window private browsing' introduced in Firefox 20