CardBook Requires Restart Featured
A new Thunderbird address book based on the CardDAV and vCard standards.
Display Mail User Agent T Requires Restart Featured
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.
SmartTemplate4 Requires Restart Featured
SmartTemplate⁴ 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.
Upload large attachments to your Cloud and send the link by email
DKIM Verifier Requires Restart Featured
Verifies the DKIM-Signature of an e-mail.
DeepDark for Thunderbird Requires Restart Featured
Dark mode for Thunderbird UI
FileLink provider for WebDAV Featured
Uploads your large attachments to your WebDAV account instead of sending them by email.
Automatically archives old mails (Improved version of the orginal Autoarchive Add-on)
Thunderbird Conversations Featured
This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.
XNote++ Requires Restart Featured
Persistent sticky notes for Thunderbird associated to mails.
This is a port to Thunderbird >= 3 based on XNote 2.1.0 ( https://addons.mozilla.org/en-US/thunderbird/addon/3093 ) with bugfixes and additional features.