Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Close
Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
Rebuilt extension structure.
Fixed extension icon display.
Synchronized button Return Receipt with menu item
Bumped to Thunderbird 3.3a1pre
Added locales ru-RU i sr-RS