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Thunderbird is an open source project, which means anyone can contribute ideas, designs, code, and time helping fellow users.
Join UsVersion 91.6.1, first offered to channel users on February 15, 2022
Thunderbird generated views of meeting invitations are now expanded by default
Emails were not downloading at startup under some conditions
Port numbers were not shown in "Confirm Security Exception" dialog for CalDAV connections
Various security fixes