Thunderbird 78.8.1 released

[German]The developers of the Thunderbird email client have released Thunderbird 78.8.1 on March 8, 2021. This is a maintenance update for the 78 main version of the email client, which fixes various bugs.


It has already been reported as a comment, that there is an update. According to the release notes there are no new features but the following bug fixes:

  • New mail notification did not occur for newly arrived messages if previously received mail was unread
  • Directory for saving multiple attachments was not remembered between saves
  • Opening a message from the command-line using "-mail <URL>" failed
  • Automatic account setup did not use the provider email and display name
  • Newly-added identities were not listed in the account manager until it was closed and reopened
  • Account provisioner did not properly handle UTF-8 data
  • Copying a large message to an IMAP server would sometimes prematurely display a time-out error
  • OpenPGP: Various errors when importing keys
  • OpenPGP: Public keys attached to an outgoing email did not have "Content-Description" set
  • Address Book: CardDAV sync errors did not retry until Thunderbird was restarted
  • Calendar: Changing the cache mode of a CalDAV calendar connection would lose the username of the account
  • Calendar: Add-on calendars were sometimes not visible after restarting
  • Calendar: The preview for a recurring task did not use all available space in the dialog window
  • Installer: Option to keep distribution directory on upgrade did not work

System requirements

The system requirements for the different operating system versions (see also form more details):

  • Windows: Windows 7, Windows Server 2008 R2 or higher
  • Mac: Mac OS X 10.9 or higher
  • Linux: GTK+ 3.4 or higher

Thunderbird is free of charge and may be downloaded here.

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