I have more information. The application in question is Nagios 1.2
Which has inbedded sound on the page. Usually this isn't a problem for firefox. However when i was running firefox from the shell to create a new profile i spotted the following message after the crash. Which seems to be connected with audio. firefox -ProfileManager ** Message: GetValue variable 1 (1) ** Message: GetValue variable 2 (2) ** Message: GetValue variable 1 (1) ** Message: GetValue variable 2 (2) ** Message: GetValue variable 1 (1) ** Message: GetValue variable 2 (2) ** Message: GetValue variable 1 (1) ** Message: GetValue variable 2 (2) ** Message: NP_Initialize ** Message: NP_Initialize succeeded /usr/lib/firefox/firefox-bin: symbol lookup error: /usr/lib/totem/libtotem- basic-plugin.so: undefined symbol: NS_CStringContainerInit ** Attachment added: "logfile" http://librarian.launchpad.net/6447604/gdb-firefox.log -- Firefox Crashes with no warning after an ubuntu update. https://launchpad.net/bugs/85511 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs