Release Notes

Thunderbird Desktop

Version 78.4.1 | Released November 6, 2020

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 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

Thunderbird prompts for an address to use when starting an email from an address book entry with multiple addresses

What’s Fixed

fixed

Searching global search results did not work

fixed

Link location was not focused by default when adding a hyperlink in message composer

fixed

Advanced address book search dialog was unusable

fixed

Encrypted draft reply emails lost "Re:" prefix

fixed

Replying to a newsgroup message did not open the compose window

fixed

Unable to delete multiple newsgroup messages

fixed

Appmenu displayed visual glitches

fixed

Visual glitches when selecting multiple messages in the message pane and using Ctrl+click

fixed

Switching between dark and light mode could lead to unreadable text on macOS

Known Issues

unresolved

Message list is not focused at startup

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