Thunderbird 78.13.0

[German]The developers of the Thunderbird email client have released Thunderbird 78.13.0 on August 10, 2021. This is a maintenance and security update for the 78 development branch that should fix several bugs and vulnerabilities.


I have already been noticed to this update by blog readers (thanks for that). According to the release notes, several fixes and improvements have been made.

Ich bin bereits von Blog-Lesern auf dieses Update hingewiesen worden (danke dafür). Laut den Release Notes wurden verschiedene Fixes und Verbesserungen vorgenommen.

  • WeTransfer FileLink provider removed
  • The fix for bug 1707360 from Thunderbird 78.12.0 was removed because it caused regressions
  • Fix: Chat account settings were not always saved as expected
  • Fix: OpenPGP: GPG smartcard libraries from Homebrew are not found on M1 Macs

As a known issue, the developers list that sending an email with HTML links with spaces in the URL sometimes results in broken links. According to this page, the update fixes some security vulnerabilities that are rated as high. 

System requirements

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

  • Windows: Windows 7, Windows Server 2008 R2 or higher
  • Mac: Mac OS X 10.9 or higher
  • Linux: GTK+ 3.14 or higher

The download of the free Thunderbird is available here.


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