Add-ons
Most Popular All »
- 1. ImportExportTools NG 306,538 users
- 2. Provider for Google Calendar 157,112 users
- 3. LookOut (fix version) 136,984 users
- 4. Send Later 127,836 users
- 5. Remove Duplicate Messages 104,718 users
- 6. Quicktext 94,310 users
- 7. Mail Merge 81,417 users
- 8. Grammar and Spell Checker — LanguageTool 81,213 users
- 9. CardBook 65,971 users
- 10. Signature Switch 58,097 users
Featured Extensions See all »
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This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.24,604 users -
Extracts attachments from messages within an account or folder, with the option to select specific attachments. By default, extracted attachments are saved to a .zip file.11,250 users -
Add-on for Thunderbird that displays information about the mail user agent (i.e. email software) with which the selected mail was composed.12,686 users -
A new Thunderbird address book based on the CardDAV and vCard standards.
Twitter: @CardBookAddon65,971 users -
Automatically archives old mails (Improved version of the orginal Autoarchive Add-on)24,866 users -
Checks all installed add-ons for compatibility with Thunderbird ESR (yearly updates) and Thunderbird Release (monthly updates).26,000 users
Up & Coming Extensions See all »
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Extract attachments from selected e-mails!
Instructions:
1. Select one or more messages
2. Right click and choose Attachment Extractor
3. Select a template for filenames and target folder
4. Done903 users -
Extracts attachments from messages within an account or folder, with the option to select specific attachments. By default, extracted attachments are saved to a .zip file.11,250 users
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Direction control and BiDi-related charset misdetection correction1,808 users -
It's an extension that changes the format of reply header.
You can choose between the standard Thunderbird reply header, a detailed reply header or a Customized reply header.
You can configure it in the Tools ->Add-on Preferences -> changeQuote.2,479 users -
You may need to install https://yellowgnu.com/wp-content/uploads/2026/07/OpenLinkWith-Windows-Helper-1.0.3.zip
Install the XPI in Thunderbird, then extract and run install-host.bat from the Windows helper ZIP.0 users
Featured Collections See all »
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