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.
1. Multiple copy safe.
2. Duplicate message detection which de-duplicates messages caused by multiple runs to Gmail.
3. Error recovery and watchdog support for stalled transfers.
4. More reliable folder creation process.