Interesting, Gnome preferences are set to Epiphany. I changed it to Firefox, and it started to insist on opening Firefox. So the bug seems to be that it's ignoring the KDE preferences and using the Gnome ones.
-- Thunderbird Ignoring Default Browser to Use Firefox https://bugs.launchpad.net/bugs/165327 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs