Add-ons
Featured Extensions
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ExQuilla for Exchange
Requires Restart
Featured
Thunderbird email accounts connecting to Microsoft Exchange Web Services.
Grammar Checker
Zombie Keys (Multilanguage Keyboard)
Requires Restart
Featured
Enter accents, diacritics, diaeresis, umlauts, ligatures etc. with keyboards of various countries (us,uk,ie,fr,it,ru,de,sv) - via easy to remember shortcuts or menu. Also supports all textboxes of the application (such as search, filters).
Signature Switch
Requires Restart
Featured
Switch the signature on/off or choose a new one from your predefined set.
ThunderHTMLedit
Requires Restart
Featured
Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.
TbSync
Requires Restart
Featured
TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.
QuickFolders (Tabbed Folders)
Requires Restart
Featured
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!
LocalFolders
Requires Restart
Featured
Add as many local folders as you want to.
New folders can reside on mapped or network locations.
Works with both TB60 through TB68
ImportExportTools NG
Requires Restart
Featured
Adds tools to import/export messages and folders (NextGen)
Send Later
Requires Restart
Featured
True "Send Later" functionality to schedule the time for sending an email.
Send Later Button
Requires Restart
Featured
A simple button to invoke the (already existing) send later functions.
To create your own collections, you must have a Mozilla Add-ons account.
