Thunderbird and OpenPGP
This page lists resources and plans related to OpenPGP messaging with Thunderbird.
With Thunderbird versions 68.x and ealier, it has been possible to use external software with Thunderbird for OpenPGP messaging. It required the installation of GPG software and the Enigmail Add-on.
Thunderbird 78, scheduled for summer 2020, will require a different solution to support OpenPGP messaging. Refer to the Thunderbird:OpenPGP:2020 document for background and our intentions.