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.
12,281 users -
FileLink provider for WebDAV
Uploads your large attachments to your WebDAV account instead of sending them by email.
35,969 users
Most Popular See all »
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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.142,748 users -
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.91,277 users -
Uploads your large attachments to your WebDAV account instead of sending them by email.35,969 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.17,295 users -
Add-on for Thunderbird that displays information about the mail user agent (i.e. email software) with which the selected mail was composed.12,281 users -
Unofficial DeepL translate extension for Thunderbird.12,015 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.5 users -
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.45 users
Recently Added See all »
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Right-click any page and Header Peek reads back the response headers that matter: HSTS, CSP, X-Frame-Options, Referrer-Policy, and what is missing. Evidence first, for the software you trust with your data.0 users
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Track any product page's price and Price Watch stores it as your baseline, then pings you the moment the page shows a real drop. Built for buy-it-for-life shopping, where the right piece at the right price is worth waiting for.0 users
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Savings rate, a 4% rule portfolio target, and the gap between them, calculated from three numbers you type once. A toolbar glance that keeps the math honest while you plan, with pointers to the guides that break down the formulas.0 users
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Start a 25-minute focus sprint from the toolbar and Hustle Timer keeps the clock for you, then pings you when the block or the break ends. Built for gig work and side projects that run inside your inbox.0 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.29 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
- Compresses images in Libre/MS Office & PDF28 users
See all 497 extensions in Miscellaneous »
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