I really should remember to try Safe Mode before reporting a Firefox bug! It turns out to be a problem with the TabFX extension.
Sorry to be wasting your time --nandhp -- Dragging a link to an existing tab is broken https://launchpad.net/bugs/54438 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
