Release Notes

Thunderbird Desktop

Check out the notes below for this version of Thunderbird. As always, you’re encouraged to tell us what you think, ask for help, or file a bug in Bugzilla.

For help and a quick start on Thunderbird 140, see Thunderbird 140 Eclipse FAQ

For more on all the new features in Thunderbird 140, see What’s New in Thunderbird 140.

System Requirements: Details

Users could no longer send using smtp-relay.gmail.com

Folder compaction could fail to complete due to folder write errors

Creating an event or task from mail failed if the mail was opened in a tab

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