The problem is worse than what I described above: the thunderbird- locale-fr is correctly installed, but Thunderbird does not seem to see it.
The real workaround: cd /usr/lib/thunderbird sudo rmdir extensions sudo ln -s ../thunderbird-addons/extensions . So the real problem is that the thunderbird installation did not replace the directory /usr/bin/thunderbird/extensions by the symlink. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/995054 Title: thunderbird loses langpacks after upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/adblock-plus/+bug/995054/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs