As you know, Mozilla Thunderbird 78 arrived two weeks ago with many exciting changes, including OpenPGP support, new minimum runtime requirements for Linux systems, DM support for Matrix, a new, centralized Account Hub, Lightning integration, and support for the Red Hat Enterprise Linux 7 operating system series. Probably the most exciting new feature in Mozilla Thunderbird 78 is support for the OpenPGP open standard of PGP encryption, which lets users send encrypted emails without relying on a third-party add-on. However, OpenPGP support wasn’t feature complete in the Thunderbird 78 release and it was disable by default.