Release Notes

Thunderbird Desktop

Version 78.13.0 | Released August 10, 2021

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.

System Requirements: Details

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

What’s Changed


WeTransfer FileLink provider removed


The fix for bug 1707360, from Thunderbird 78.12.0, was removed for causing regressions

What’s Fixed


OpenPGP: Homebrew's GPG Smartcard libraries not found on M1 Macs


Various security fixes

Known Issues


Sending an email containing HTML links with spaces in the URL sometimes results in broken links

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