Release Notes

Thunderbird Desktop

Version 115.8.1 | Released March 5, 2024

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 115, see Thunderbird 115 Supernova FAQ.

For more on all the new features in Thunderbird 115, see What’s New in Thunderbird 115.

System Requirements: Details

  • Windows: Windows 7 or later
  • Mac: macOS 10.12 or later
  • Linux: GTK+ 3.14 or higher

What’s Fixed

fixed

Settings: Updating tags failed if Automatic Updates were disabled

fixed

Size of collapsed folders in folder pane did not include size of subfolders

fixed

Reversing sort order of Grouped By views in quick search did not reverse

fixed

Removing threaded messages in a unified folder sometimes resulted in an incorrect number of levels in the thread

fixed

Thread collapsing did not behave correctly when copying thread messages in multi-folder view

fixed

S/MIME encryption failed to encrypt if unsupported certificate type was encountered

fixed

Decrypting a copy of an S/MIME encrypted, opaque-signed message created an unreadable message

fixed

Thunderbird sometimes changed the subject of messages selected while simultaneously decrypting a large PGP-encrypted message

fixed

"Quote message" menu item in compose window did not work when replying to message opened in separate tab

fixed

Toolbar customization window contents overflowed the window width

Learn What’s Next

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