Thunderbird Version 91.7.0

[German]The developers of the Thunderbird email client have released Thunderbird 91.7.0 on March 8, 2022. It is a maintenance update for the 91 development branch, which brings various fixes.


Blog  reader Gerold pointed out the release in this comment (thanks for that) – I was offered the update during a search. According to the Thunderbird release notes, the update brings the following change: 

Thunderbird will use the first occurrence of headers that should only appear once

The update also includes the following fixes.

  • Auto-complete incorrectly changed a pasted email address to the primary address of a contact
  • Attachments with filename extensions that were not registered in MIME types could not be opened
  • Copy/Cut/Paste actions not working in Thunderbird Preferences
  • Improved screen reader support of displayed message headers

In addition, the vulnerabilities in Thunderbird listed here, and rated as high have been fixed.

System requirements

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

  • Windows: Windows 7 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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