Release Notes

Thunderbird Desktop

Version 128.7.1esr | Released February 18, 2025

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 128, see Thunderbird 128 Nebula FAQ

For more on all the new features in Thunderbird 128, see What’s New in Thunderbird 128.

System Requirements: Details

  • Windows: Windows 10 or later
  • Mac: macOS 10.15 or later
  • Linux: GTK+ 3.14 or higher

What’s Fixed

fixed

Users may not have been notified if messages arrived in multiple folders at once.

fixed

Message list scrolled to the wrong place on start-up.

fixed

Unified folders could become unusable instead of being automatically rebuilt.

fixed

Some messages may have been threaded incorrectly in unified folders.

fixed

Middle-click autoscroll cursor appeared without arrows instead of expected design.

Learn What’s Next

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