Add-ons
Miscellaneous
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FileLink provider for WebDAV
Uploads your large attachments to your WebDAV account instead of sending them by email.
44,686 users -
Display Mail User Agent T
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.10,505 users
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Provider for Google Calendar connects Thunderbird with Google Calendar for full task sync, conference details, and scheduling support. It offers deeper integration than Thunderbird’s native support using Google’s official API.166,830 users -
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.94,008 users -
Uploads your large attachments to your WebDAV account instead of sending them by email.44,686 users -
Adds many new mail filter actions - launch a file, suppress notification, remove star or tag, mark replied or unread, copy as "read", append text to subject.18,650 users -
Unofficial DeepL translate extension for Thunderbird.12,621 users -
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.12,117 users
Top Rated See all »
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Permits selective enabling and disabling of search indexing on folders or accounts - with inheritence. Also adds three columns to the Thunderbird message pane that are useful in debugging.7 users
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If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.51 users
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A VFS provider add-on that enables WebExtensions using the VFS Toolkit to access the user's local home folder through a native messaging helper application.0 users -
Find, select & drag words from your emails. Solve tech-themed puzzles. 21 puzzles, 3 levels, email-only input validation & more to discover. Perfect for Thunderbird users who like productivity & ..fun?
Made by Michael 'ThunderBard' Ellis.1 user -
AI-powered email search and question answering for Thunderbird. Search your emails with natural language questions. Use a ? to ask questions, otherwise it will default to search by keyword sorted most recent first.
Requires an OpenAI API key!12 users
See all 484 extensions in Miscellaneous »
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