Recently Updated Extensions
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.
Color diffs sent by SVN/CVS/GIT/Mercurial...
Dynamic theming of Thunderbird using your Pywal colors.
The best Translator for your new Thunderbird 78!
Available also for your Firefox web browser.
Extension for Lightning: Allows the use of Markdown in Task descriptions and renders them as HTML in the TaskView.
LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Move tabs in status bar and iconify menu bar.
This add-on researches new tabs' position and menubar iconification.
This add-on is good to view it on Light theme.
This add-on is as role as if task bar of Windows.
Life in Holy Spirit.
Limits displayed headers to 1 or 2 lines.
Automatically select and display latest message from the list on startup or when switching folder for the first time.
Switch the signature on/off or choose a new one from your predefined set.
Raise X11 urgent flag if new mail is received.
This addon listens for incoming mails and causes the Thunderbird window to draw attention.
Remove nested quotes when replying to a mail.
Empties the Trash and Junk folders, and compacts folders in multiple Thunderbird accounts.
Печатаем по русски на разных клавиатурах.
E-Mails auf Russisch auf verschiedenen Tastaturen in Thunderbird.
Typing Russian on English, German and other keyboards without thinking about the layout.
Thunderbird Conversations Featured
This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.
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.
Create file attachments directly from the system clipboard.
Displays spam scores according to mail headers. Supports spam/ham score headers of Rspamd and SpamAssassin. The add-on adds a column with the overall spam score to the mail list view and shows details of any matched spam/ham rule.
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.