*** This bug is a duplicate of bug 57923 *** Yup, it was, thanks!
** This bug has been marked a duplicate of bug 57923 Opening firefox by clicking on links in thunderbird breaks https -- https broken when firefox launched by Gnome to view a clicked link https://launchpad.net/bugs/61005 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs