Recently Updated Extensions
Upload large attachments to your Cloud and send the link by email
Sets the spell check dictionary based on the first recipient
Check that number of non-BCC recipients does not exceed a parameter.
Enigmail Requires Restart
OpenPGP message encryption and authentication for Thunderbird.
HeaderTools Lite Requires Restart
Allows to modify the header and the source of messages
Adds an 'expand lists' button to the compose window. It replaces all mailing lists with their contacts.
Warns if you send mail from or to a specified domain. If there are multiple accounts in your profile, you can isolate one so that you can't send mail to that domain from outside or vis versa without warning.
EditEmailSubject (Edit email Subject) Requires Restart
This module allows you to change/edit email subjects
Edit Email Subject Requires Restart
Edit Email Subject for Thunderbird
Display Mail User Agent T Requires Restart
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.
Thunderbook Requires Restart
Export messages (including RSS items) as e-books.
Provider for Exchange ActiveSync Requires Restart
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync
Provider for CalDAV & CardDAV Requires Restart
This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync". Including iCloud, Google, ownCloud, Nextcloud, Radicale and many more.
QuickNote T Requires Restart
A note taking extension with advanced features.
Only QuickNote is compatible with Thunderbird after Web Extesnsions support. Since development and operation check are done on Daily, it may not work on normal Thunderbird.
Lightning Colors Reminder Requires Restart
Let's show the calendar color on Lightning reminders!
DeepDark for Thunderbird Requires Restart
Dark mode for Thunderbird UI
Upload large attachments to Plik and send the link by email
MRC Compose Requires Restart
Remplace la liste d'adresses par les champs standards (Pour, Copie à, Copie cachée à) avec l'autocomplétion.
Provides standards fields (TO, CC, BCC) with autocomplete to Thunderbird's compose pane.
For bug reports, please use support email.
BrowseInTab lets you open and browse any link in a Thunderbird content tab. Links are followed within the tab and back/forward navigation is supported.
Copy email address to clipboard.