firefox crashed with SIGSEGV in g_object_unref()

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Binary package hint: firefox-3.0

firefox crash when I click close.

ProblemType: Crash
Architecture: i386
CrashCounter: 1
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/lib/firefox-3.0.3/firefox
Package: firefox-3.0 3.0.3+nobinonly-0ubuntu2
ProcAttrCurrent: unconfined
ProcCmdline: /usr/lib/firefox-3.0.3/firefox
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:
 ?? () from /usr/lib/libgdk-x11-2.0.so.0
 ?? () from /usr/lib/libgdk-x11-2.0.so.0
 g_object_unref () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/libgdk-x11-2.0.so.0
 g_object_unref () from /usr/lib/libgobject-2.0.so.0
Title: firefox crashed with SIGSEGV in g_object_unref()
Uname: Linux 2.6.27-7-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy lpadmin netdev plugdev powerdev scanner video