Release Notes

Thunderbird Desktop

Version 78.5.0 | Released November 17, 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

OpenPGP: Added option to disable attaching the public key to a signed message

new

MailExtensions: "compose_attachments" context added to Menus API

new

MailExtensions: Menus API now available on displayed messages

What’s Changed

changed

MailExtensions: browser.tabs.create will now wait for "mail-delayed-startup-finished" event

What’s Fixed

fixed

OpenPGP: Support for inline PGP messages improved

fixed

OpenPGP: Message security dialog showed unverified keys as unavailable

fixed

Chat: New chat contact menu item did not function

fixed

Various theme and usability improvements

fixed

Various security fixes

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