Release Notes

Thunderbird Desktop

Version 128.3.0esr | Released October 1, 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 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

Opening an EML file with a 'mailto:' link did not work

fixed

Collapsed POP3 account folder was expanded after emptying trash on exit

fixed

"Mark Folder Read" on a cross-folder search marked all underlying folders read

fixed

Unable to open/view attached OpenPGP encrypted messages

fixed

Unable to "Decrypt and Open" an attached OpenPGP key file

fixed

Subject could disappear when replying to a message saved in an EML file

fixed

OAuth2 authentication method was not available when adding SMTP server

fixed

Unable to subscribe to .ics calendars in some situations

fixed

Visual and UX improvements

Learn What’s Next

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