gnome-settings-daemon crashed with SIGSEGV in g_cclosure_marshal_VOID__STRINGv()

[asiweb]

when open firefox

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: gnome-settings-daemon 3.4.2-0ubuntu6
ProcVersionSignature: Ubuntu 3.5.0-5.5-generic 3.5.0-rc7
Uname: Linux 3.5.0-5-generic x86_64
ApportVersion: 2.4-0ubuntu3
Architecture: amd64
Date: Thu Jul 19 22:15:07 2012
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64+mac (20120719.1)
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
ProcEnviron:
 SHELL=/bin/false
 PATH=(custom, no user)
 LANG=es_ES.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7fe60e08c3f8: mov (%rax),%rdi
 PC (0x7fe60e08c3f8) ok
 source "(%rax)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-settings-daemon
StacktraceTop:
 ?? () from /usr/lib/gnome-settings-daemon-3.0/libxsettings.so
 ?? () from /usr/lib/gnome-settings-daemon-3.0/libxsettings.so
 g_cclosure_marshal_VOID__STRINGv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: gnome-settings-daemon crashed with SIGSEGV in g_cclosure_marshal_VOID__STRINGv()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #948347, so is being marked as such. 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. Please continue to report any other bugs you may find.