It seems there are lots of apparmor-related issues with Firefox from ppa:mozillateam, see bug #2080768 (apparmor profile: allow gio-launch- desktop) or bug #2083064 (Firefox package built by Canonical should properly remove all of the AppArmor configuration files) for example.
Firefox packages from https://packages.mozilla.org/apt does't include /etc/apparmor.d/usr.bin.firefox profile and removes existing file in debian/post* or pre* scripts. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2073094 Title: Firefox's AppArmor profile issues (MPRIS) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2073094/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs