Package: thunderbird Version: 1:140.5.0esr-1 Thunderbird's PGP integration fails to use external keys since it doesn't find libgpgme after the recent soname bump from 11 to 45 (gpgme1.0 1.24.2-3 -> 2.0.1-2).
See comm/mail/extensions/openpgp/content/modules/GPGMELib.sys.mjs line 574 Looking at the package metadata it seems the dependency on libgpgme is missing completely. Until this is fixed you can work around by installing libgpgme-dev. The code linked above also loads from libgpgme.so (without any soname), which is provided by the -dev package.
