PrintingTools Requires Restart
Adds some options to print messages and addressbooks
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.
MinimizeToTray revived Requires Restart
Minimizes windows into the system tray.
Add-on has now been discontinued, see below.
Minimize On Start and Close Requires Restart
A remake of the MinimizeToTray-extension made to fit the Windows 7 taskbar. Instead of minimize the window to the tray it minimize it to the taskbar. It can minimize on startup, when the window is closed and/or when the esc key is pressed.
FileLink provider for WebDAV Featured
Uploads your large attachments to your WebDAV account instead of sending them by email.
Display Mail User Agent T Featured
Displays the mail program with which the selected mail was written
*This addon is compatible with Thunderbird after Web Extesnsions support. Since development and operation check are done on Daily, it may not work on normal Thunderbird.
Allows bidirectional access to Google Calendar
Google Keep for Thunderbird
ImportExportTools Requires Restart
Adds some tools to import and export folders and messages
Google Calendar Tab Requires Restart
Adds the Google Calendar web interface as a new tab directly into Thunderbird. Creating and viewing events works just as it would in a browser like Firefox
Empties the Trash and Junk folders, and compacts folders in multiple Thunderbird accounts.
Dorando keyconfig Requires Restart
A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)
Moves the toolbar back above the tabbar.
URL Link is a small Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.
Auto Compress File Requires Restart
Compressor for attachment files. All platforms are supported (Windows, Linux and Macintosh).
ePhotoUploader Requires Restart
ePhoto Uploader is a Mozilla/Firefox addon to allow you to upload any image on websites you're browsing to your ePhotoBay account by just one click. For the addon to work a free ePhotoBay account is required.
Open With Requires Restart
Open With can open your web links in any browser installed on your computer.
BOINC Stats 2 Requires Restart
Displays your Total and Recent Average Credits for BOINC distributed computing projects in the status bar.
List addons in Windows' "Add or Remove Programs".