Add-ons
Most Popular All »
- 1. Provider for Google Calendar 270,896 users
- 2. Manually sort folders 211,463 users
- 3. ImportExportTools NG 195,911 users
- 4. LookOut (fix version) 159,221 users
- 5. Quicktext 125,163 users
- 6. Remove Duplicate Messages 85,545 users
- 7. Enigmail 81,353 users
- 8. TbSync 75,216 users
- 9. CardBook 74,495 users
- 10. Mail Merge 71,415 users
Featured Extensions See all »
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A new Thunderbird address book based on the CardDAV and vCard standards.
Twitter: @CardBookAddon74,495 users -
Upload large attachments to your Cloud and send the link by email13,414 users -
Displays the mail program with which the selected mail was written
*This addon is compatible with Thunderbird after Web Extesnsions support. Since development and operation check are done on Daily, it may not work on normal Thunderbird.7,875 users -
Uploads your large attachments to your WebDAV account instead of sending them by email.10,081 users -
Persistent sticky notes for Thunderbird associated to mails.
In TB 78, you can define the note position in the settings. If you have a large screen, you can even display the notes outside of TB's main window, so it won't hide anything.19,649 users
Up & Coming Extensions See all »
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Adds calendars containing the birthdays from your address books.1,920 users -
Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.2,012 users -
![Icon for Grammalecte [fr] (for Thunderbird)](https://addons.thunderbird.net/user-media/addon_icons/809/809689-32.png?modified=1602750472)
French grammar checker. Included: conjugation tool, text formatter and spelling dictionaries.5,266 users -
Highlights selected text when composing emails. Default colour is yellow - other colours are available via Options.
(Works only during writing an e-mail, i.e. only in the compose window.)3,421 users -
Add simple functions to report spams or phishing to Signal Spam by one click.
The add-on will also alert you if you open a fraudulent e-mail (phishing).12,869 users -
Displays spam scores according to mail headers. Supports spam/ham score headers of Rspamd, SpamAssassin and MailScanner. The add-on adds a column with the overall spam score to the mail list view and shows details of any matched spam/ham rule.1,025 users
Featured Collections See all »
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