Well it looks like this link explains the problem: https://lists.ubuntu.com/archives/hardy-changes/2008-April/011149.html
" * fix "frequent crashes with flash on youtube"; we fix this by demoting libflashsupport from depends: to suggests: (LP: #192888) This has positive as well as negative consequences: (+) increased stability for firefox and nspluginwrapper (-) pulseaudio users reported that this breaks sound if flash while other applications are running that use the sound device for output. Users that installed libflashsupport during hardy cycle should uninstall it to increase stability. " I am uninstalling libflashsupport and will reinstall the Flash-plugin and see if it stabilizes. -- (firefox:8047): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed https://bugs.launchpad.net/bugs/221668 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