MASTER firefox crashed with SIGSEGV in @leave_notify_event_cb

[vnieto]

Binary package hint: firefox-3.0

When I print to file a web pages

ProblemType: Crash
Architecture: amd64
CrashCounter: 1
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/lib/firefox-3.0.3/firefox
NonfreeKernelModules: ath_hal nvidia
Package: firefox-3.0 3.0.3+nobinonly-0ubuntu1
ProcAttrCurrent: unconfined
ProcCmdline: /usr/lib/firefox-3.0.3/firefox
ProcEnviron:
 PATH=/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=es_CO.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: firefox-3.0
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/xulrunner-1.9.0.3/libxul.so
 ?? () from /usr/lib/libgtk-x11-2.0.so.0
 g_closure_invoke ()
 ?? () from /usr/lib/libgobject-2.0.so.0
Title: firefox crashed with SIGSEGV in g_closure_invoke()
Uname: Linux 2.6.27-7-generic x86_64
UserGroups: adm admin audio cdrom dialout dip disk floppy fuse lpadmin plugdev video

[Apport retracing service (apport)]

StacktraceTop:?? ()
leave_notify_event_cb (widget=0x49deea0, event=0x2e7a5d0) at nsWindow.cpp:4609
_gtk_marshal_BOOLEAN__BOXED (closure=0x5f3fc20, return_value=0x7fff7c303620, n_param_values=<value optimized out>,
IA__g_closure_invoke (closure=0x5f3fc20, return_value=0x7fff7c303620, n_param_values=2, param_values=0x5d28730,
signal_emit_unlocked_R (node=0x1e24a20, detail=0, instance=0x49deea0, emission_return=0x7fff7c303760,