I have readded all browser addons sans Firebug and continue without error. Consequently, the difficulty I was experiencing appears to be with Firebug, which I have removed.
-- Frequent CRASH ALSA / pulseaudio / networkmanager https://bugs.launchpad.net/bugs/341009 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