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Mozilla Thunderbird 78.6 Improves Calendar’s Dark Mode on Linux, OpenPGP

Mozilla Thunderbird 78.6 is mostly about further improving the OpenPGP implementation, which is the biggest feature of the Thunderbird 78 series allowing users to send encrypted messages with ease and without the need of a third-party extension. As such, this release improves the discovery of keys online via Key Manager on Linux, improves inline PGP parsing, improves the Key Manager to no longer display properties of the wrong key after importing a secret key, improves the verification of clear signed UTF-8 text, and fixes the “Decrypt and Open/Save As” option for encrypted attachments.