Release Notes

Thunderbird Desktop

Version 78.3.1 | Released September 26, 2020

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

Thunderbird 78.3.1 includes a fix for crashes reported in Thunderbird 78.3.0. See the notes for Thunderbird 78.3.0 for improvements made in that version.

For more on all of the new features in Thunderbird 78, see New in Thunderbird 78.0.

System Requirements: Details

  • Windows: Windows 7 or later
  • Mac: macOS 10.9 or later
  • Linux: GTK+ 3.14 or higher

What’s Fixed


Thunderbird crashed after updating to 78.3.0

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