[$] OpenPGP in Thunderbird

It is a pretty rare event to see a nearly 21-year-old bug be addressed-manyprojects are nowhere near that old for one thing-but that is just what hasoccurred for the Mozilla Thunderbird emailapplication. An enhancementrequest filed at the end of 1999 asked for a plugin to support email encryption, but it has mostlylanguished since. The Enigmail plugin did comealong to fill the gap by providing OpenPGP support using GNU Privacy Guard (GnuPG or GPG), but wasnever part of Thunderbird.As part of Thunderbird 78,though, OpenPGP is now fully supported within the mail user agent(MUA).