Keyfixer Requires Restart
(Note: Version 0.5.34 has been updated to work with Firefox 34)
Keyfixer patches the key bindings for Mac OS X users of Firefox and Thunderbird to match the key bindings of Windows
Extra Folder Columns Requires Restart
This extension is for those TB3 users who want the multiple-columns view that TB2 allowed
IMPORTANT: If you are using Thunderbird 38 or later, uninstall this addon. The functionality is in core now.
ViewAbout Requires Restart
Enables access to various about: dialogs from the View menu.
Evolution Mirror Requires Restart
Mirrors calendars to Evolution Database Server to allow them to be viewed through the gnome clock applet
Mass Password Reset Requires Restart
Sometimes you change a central password that ends up changing 12 others. This add on helps you reset multiple passwords in the Firefox/Thunderbird password manager.
Bugmail Requires Restart
This extension adds bug status to the header pane. It currently supports Bugzilla, Trac, Flyspray and Launchpad.
Open Addons TB Requires Restart
Open Add-ons window with one click
Stacked Inspector Requires Restart
Switch DOM Inspector to an over/under vertical layout instead of the usual side-by-side panel layout.
ReloadPAC Requires Restart
Workaround for Bug 351163 (Thunderbird bypasses proxy.pac for first connection).
KeePass Helper Requires Restart
Adds a hostname, URL, or email account ID to the application's window name (e.g., that of Firefox or Thunderbird) to make it recognizable to password manager utilities like KeePass.
Ruler Bar Requires Restart
This appends a ruler to the mail composition window.
JSON Calendar Provider Requires Restart
JSON based calendar Provider - designed to make writing backends for calendars trivial
Adds a column for displaying the certificates Email address to the "Your Certificates" tab of the Certificate Manager
File Bug Report Requires Restart
For testers and developers who submit bug reports: Adds "File Bug Report" command to Tools menu. Opens browser at the Bugzilla enter-bug page in guided format with product and build identifier.
Zenbu-Robot Requires Restart
This is a Joke Add-on.
Externals of Firefox and Thunderbird are changed.
New Mail Icon Requires Restart
Displays an icon in the system tray when new mail arrives.
A Better S/MIME GUI Requires Restart
Provides a better S/MIME GUI for Thunderbird.
S/MIME Security for Multiple Identities Requires Restart
Adds S/MIME Security configuration to the multiple identities dialog.
Meanwhile this feater has been integrated into Thunderbird 3
Colorify Unread Watched NNTP Requires Restart
Colorizes names of newsgroups that have watched threads with unread messages.
Chromatasks Requires Restart
Color task rows with calendar color