I should also mention that the maintainer of the Thunderbird add-ons pointed me to this relevant issue tracker:
https://github.com/jobisoft/DAV-4-TbSync/issues/202 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1875348 Title: dependence upon libresolv.so (libc6-dev) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1875348/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs