Thunderbird Desktop
Version 78.3.0 | Released September 24, 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.
Frequent crashes were reported after updating to Thunderbird 78.3.0. Thunderbird 78.3.1 is now available with a fix.
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 Changed
changed
OpenPGP: Improved decryption performance with large messages
changed
OpenPGP: Do not show external key UI when disabled by preference
changed
Account setup wizard will now open a popup when connecting to a server with a self-signed SSL/TLS certificate
changed
Installation of "legacy" MailExtensions now disabled
changed
Reply-To header moved in compose window; now appears under From header
changed
Calendar: Sidebar UI improvements
What’s Fixed
fixed
Selecting "Cancel" on the Master Password prompt at startup incorrectly reported corrupted OpenPGP data
fixed
OpenPGP: Creating a new key pair did not automatically select it for use
fixed
Dragging & Dropping recipient pills resulted in lost pills when an error was present
fixed
Spellcheck suggestions were unreadable in dark theme
fixed
Calendar: Multiple password prompts opened
fixed
Linux Distributions: UI was not rendered completely when built without updater
fixed
MailExtensions: browser.folders.delete failed on IMAP folders
fixed
Various security fixes
Known Issues
unresolved
Message list is not focused at startup
Learn What’s Next
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