My suspicion at this stage is that Firefox was using a locally installed flash plugin in ~/.mozilla/plugins rather than the Ubuntu packaged version of flashplugin-nonfree. Disabled that and it seems, so far, to be making a difference.
-- firefox crashed with SIGSEGV https://bugs.launchpad.net/bugs/260587 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