Add-ons
Most Popular All »
- 1. Provider for Google Calendar 252,219 users
- 2. Manually sort folders 216,452 users
- 3. ImportExportTools NG 213,326 users
- 4. LookOut (fix version) 164,403 users
- 5. Quicktext 128,161 users
- 6. Remove Duplicate Messages 85,749 users
- 7. TbSync 82,109 users
- 8. Send Later 76,651 users
- 9. CardBook 73,708 users
- 10. Mail Merge 70,503 users
Featured Extensions See all »
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SmartTemplates offers an easy and powerful way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every mail identity, Stationery files can now be imported and used directly.6,703 users -
Persistent sticky notes for Thunderbird associated to mails. You can email them/print/copy to clipboard.
If you have a large screen, you can even display the notes outside of TB's main window, so it won't hide anything.20,109 users -
Upload large attachments to your Cloud and send the link by email19,464 users -
Uploads your large attachments to your WebDAV account instead of sending them by email.20,022 users -
Automatically archives old mails (Improved version of the orginal Autoarchive Add-on)16,298 users
Up & Coming Extensions See all »
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Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).2,902 users -
Check your emails for spelling and grammar issues4,781 users -
Restores the charset menu removed in Thunderbird 91 and fixes an issue in Thunderbird 78.2,348 users
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Get the hidden appointment from an email from outlook/teams as a .ics-file - Icon: https://fontawesome.com/1,149 users -
(Pre-) view image and office files in attachments
* Docx, xlsx, pptx, pdf preview
* Slideshow of images
* Zoom
* Drag zoomed image to choose the displayed region
* Rotate image
* Flip image
* Download dialog with thumbnail of the image1,032 users -
Toolbar-Buttons for Lightning; advances the feature to get rid of the tabbar.5,963 users
Featured Collections See all »
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