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Join UsVersion 91.7.0, first offered to channel users on March 8, 2022
Thunderbird will use the first occurrence of headers that should only appear once
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
Various security fixes