Release Notes

Thunderbird Desktop

Version 78.8.1 | Released March 8, 2021

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 Fixed

fixed

New mail notification did not occur for newly arrived messages if previously received mail was unread

fixed

Directory for saving multiple attachments was not remembered between saves

fixed

Opening a message from the command-line using "-mail <URL>" failed

fixed

Automatic account setup did not use the provider email and display name

fixed

Newly-added identities were not listed in the account manager until it was closed and reopened

fixed

Account provisioner did not properly handle UTF-8 data

fixed

Copying a large message to an IMAP server would sometimes prematurely display a time-out error

fixed

OpenPGP: Various errors when importing keys

fixed

OpenPGP: Public keys attached to an outgoing email did not have "Content-Description" set

fixed

Address Book: CardDAV sync errors did not retry until Thunderbird was restarted

fixed

Calendar: Changing the cache mode of a CalDAV calendar connection would lose the username of the account

fixed

Calendar: Add-on calendars were sometimes not visible after restarting

fixed

Calendar: The preview for a recurring task did not use all available space in the dialog window

fixed

Installer: Option to keep distribution directory on upgrade did not work

Learn What’s Next

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