Add-ons
Miscellaneous
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Display Mail User Agent T
Add-on for Thunderbird that displays information about the mail user agent (i.e. email software) with which the selected mail was composed.
12,105 users -
FileLink provider for WebDAV
Uploads your large attachments to your WebDAV account instead of sending them by email.
38,516 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.145,254 users -
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.102,433 users -
Uploads your large attachments to your WebDAV account instead of sending them by email.38,516 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.18,445 users -
List addons in Windows' "Add or Remove Programs".13,499 users -
Unofficial DeepL translate extension for Thunderbird.13,208 users
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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.5 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.43 users
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Take Notes for Thunderbird is a fork of the original QuickNote note taking extension.
Take Notes for Thunderbird lets you create, edit, color, delete, export and capture notes from selected text or links inside Thunderbird.4 users -
Propably the most advanced image compression addon for Thunderbird
- Safes 70 - 80 % space even without (optional) resizing
- State-of-the-art compression algorithms: JPEGli, pngquant, and oxipng
- Converts PNG to JPG if it safes space4 users -
Take the classic 100-question Rice Purity Test and calculate your score. Progress is saved locally.0 users -
Compose-time wellness nudges for Thunderbird. On-device heuristics while you write — rules can update quietly in the background. Optional account linking for dashboard sync. Your email body stays private.1 user -
Shows coloured sender avatars with initials in the Thunderbird message list. Falls back to Gravatar for senders with public profiles.5 users
See all 498 extensions in Miscellaneous »
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