Release Notes

Thunderbird Desktop

Version 91.5.1 | Released January 24, 2022

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 more on all the new features in Thunderbird 91, see New in Thunderbird 91.0.

System Requirements: Details

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

What’s Fixed

fixed

JS LDAP implementation did not support self-signed SSL certificates

fixed

After saving a draft and subsequently sending a FileLink email, the original file was removed from disk

fixed

Chat OTR encryption did not work

fixed

OTR verification bar was not removed after completing verification

fixed

Various theme improvements

Learn What’s Next

Thunderbird keeps getting better. Subscribe to our newsletter and follow us on social media to stay informed.