Recently Updated Extensions
Quicktext Requires Restart
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.
Send Later Requires Restart
True "Send Later" functionality to schedule the time for sending an email.
Menu On Top (SuperMenu Avatar) Requires Restart
Move the Thunderbird menu bar to the top. Choose from a selection of visual styles + colors. Add frequently used bookmarks and an avatar icon without wasting precious screen space. Bookmark your favorite sites, emails, folders or configuration pages.
quickFilters Requires Restart
Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.
By popular demand, supports SORTING filters alphabetically.
CardBook Requires Restart Featured
A new Thunderbird address book based on the CardDAV and vCard standards.
QuickFolders (Tabbed Folders) Requires Restart
The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.
See new mail at a glance after automatic filtering - supports quickFilters addon!
Exit Button Thunderbird Requires Restart
Adds a toolbar button to exit Thunderbird. Go to View menu, Toolbars, Customize... and drag the icon where you want...
Rise of the Tools Requires Restart
Moves the toolbar back above the tabbar.
LightningButton Requires Restart
Toolbar-Buttons for Lightning; advances the feature to get rid of the tabbar.
Phoenity Buttons Requires Restart
Adds some toolbar buttons using phoenity icons.
Displays message headers more compact (2 lines).
Get/Send Button Requires Restart
Extends the original "Get" button (optionally) to "Get/Send" and adds a popup menu with additional functions.
You may want to use it together with the following Add-ons:
* Send Later Button (by me / Alexander Ihrig)
* Send Later (by jikamens)
gContactSync Requires Restart
Synchronizes contacts & groups between Thunderbird and Google Contacts.
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
Delete Trash Button Requires Restart
Adds an Empty Deleted button to the Toolbar
Easiest way to change your Facebook background. More than 100+ free background image available.
Warns if you send mail from or to a specified domain. If there are multiple accounts in your profile, you can isolate one so that you can't send mail to that domain from outside or vis versa without warning.
Todo.txt Requires Restart
Thunderbird extension for the Todo.txt application
Reply to Multiple Messages Requires Restart
Add menu commands for replying to multiple messages at the same time.
ToggleReplied Requires Restart
Enables toggling of replied, forwarded, and redirected states of messages.
Folder Pane View Switcher Requires Restart
Folder view arrows; switch to "All Folders" view when hovering during drag & drop; allow user to select which views are enabled or tied to the view arrows.