Release Notes

Thunderbird Desktop

Version 78.2.2 | Released September 10, 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.

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 New

new

Drag and Drop reordering of recipient pills now supported

What’s Changed

changed

OpenPGP: Some signature states reported as "mismatch" now report "unknown"

changed

Privacy policy now displayed in a tab when updated

changed

Chat: Non-functional Twitter support removed

What’s Fixed

fixed

OpenPGP: Improvements to key importing when failures occur

fixed

OpenPGP: Decryption did not work with certain HTTP proxy configurations

fixed

OpenPGP: "Discover keys online" option did not work when searching for an email address

fixed

Email filters reported failure when moving a message to original folder

fixed

Message filters: Filters shown as enabled in configuration dialog were not always enabled

fixed

vCard 2.1 attachments not handled properly

fixed

Sending messages sometimes failed when recipients were in LDAP address book

fixed

Non-functional help menu items removed

fixed

Adding custom headers in the addressing widget (preference mail.compose.other.header) did not work

fixed

Calendar: Event reminder details were unreadable

fixed

Windows 10 high-contrast theme fixes

fixed

More theme fixes and improvements

Known Issues

unresolved

Selecting "Cancel" on the Master Password prompt at startup incorrectly reports corrupted OpenPGP data.

unresolved

Message list is not focused at startup

Learn What’s Next

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