Someone has updated the instructions here https://wiki.ubuntu.com/MozillaTeam/Bugs so that I can now get a backtrace of sorts. Attaching; gdb is still complaining that it's missing some information, but at least it gives up a little.
** Attachment added: "GZipped gdb output" http://launchpadlibrarian.net/15632575/gdb-firefox.txt.gz -- Firefox 3.0 Beta 5 crashed when playing video https://bugs.launchpad.net/bugs/224952 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