firefox crashed with SIGSEGV in g_type_check_instance_cast()

[Olisemeka Omo]

Binary package hint: firefox-3.0

Description: Ubuntu intrepid (development branch)
Release: 8.10

What I was doing:
++++++++++
I had four tabs in my Firefox browser and I tried to save and quit; when it crashed.

Expectation:
+++++++
Firefox should saved my tabs and quit.

Reality:
++++
Firefox crashed.

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/lib/firefox-3.0.1/firefox
Package: firefox-3.0 3.0.1+build1+nobinonly-0ubuntu2
ProcAttrCurrent: unconfined
ProcCmdline: /usr/lib/firefox-3.0.1/firefox https://bugs.launchpad.net/ubuntu/+source/gvfs/+filebug/4K5VnbrXlZvVvQEzhhLXna4u3Vl?field.title=gvfsd-trash+crashed+with+SIGSEGV+in+g_main_context_dispatch%28%29
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: firefox-3.0
StacktraceTop:
 g_type_check_instance_cast ()
 ?? () from /usr/lib/flashplugin-nonfree/libflashplayer.so
 ?? () from /usr/lib/flashplugin-nonfree/libflashplayer.so
 ?? () from /usr/lib/flashplugin-nonfree/libflashplayer.so
 ?? () from /usr/lib/flashplugin-nonfree/libflashplayer.so
Title: firefox crashed with SIGSEGV in g_type_check_instance_cast()
Uname: Linux 2.6.26-5-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev video

[Apport retracing service (apport)]

StacktraceTop:IA__g_type_check_instance_cast (type_instance=0xaaaaaaaa, iface_type=135841192)
?? ()
?? ()
?? ()
?? ()

[Hellsgator (hellsgate)]

crashed here aswell, with a major crash report.

just started up firefox and the crash occured.

if i need to give more info, let me know.

[Olisemeka Omo (speedbaron)]

This seens to happen consistly if the homepage is set to www.bbc.com. It would crash just before the BBC homepage finishes downloading.

[StoatWblr (stoatwblr)]

Consistently crashes when trying to close a window or tab that has flash player running in it.

[Andreas Moog (ampelbein)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has also been reported in bug 259920, so it is being marked as duplicate, since there is a better stacktrace attached. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.