Add-ons
Most Popular All »
- 1. ImportExportTools NG 293,370 users
- 2. Provider for Google Calendar 167,252 users
- 3. LookOut (fix version) 137,050 users
- 4. Send Later 122,884 users
- 5. Remove Duplicate Messages 100,389 users
- 6. Quicktext 97,068 users
- 7. Grammar and Spell Checker — LanguageTool 77,826 users
- 8. Mail Merge 77,687 users
- 9. CardBook 66,956 users
- 10. Signature Switch 56,728 users
Featured Extensions See all »
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Automatically archives old mails (Improved version of the orginal Autoarchive Add-on)24,509 users -
Upload large attachments to your Cloud and send the link by email40,169 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.9,966 users -
A new Thunderbird address book based on the CardDAV and vCard standards.
Twitter: @CardBookAddon66,956 users -
Checks all installed add-ons for compatibility with Thunderbird ESR (yearly updates) and Thunderbird Release (monthly updates).23,505 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. Done1,101 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.9,966 users
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Direction control and BiDi-related charset misdetection correction1,658 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.2,253 users -
BYO AI Grammar is a Thunderbird add-on that provides inline grammar suggestions while composing email. You bring your own LLM, as long as it follows the OpenAI API (could use local LLM; untested). I use tiny and cheap google/gemma-3n-E4B-it0 users
Featured Collections See all »
To create your own collections, you must have a Mozilla Add-ons account.
