quantal 3.5.0-13-generic firefox 15.0 crash

entering a launchpad comment, did an alt-tab and Firefox disappeared. Restarted firefox and my active tabs were gone so Firefox must have done a reset.

Got a timeout entering this bug trying again.

Jerry

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: firefox 15.0+build1-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
Uname: Linux 3.5.0-13-generic i686
AddonCompatCheckDisabled: False
ApportVersion: 2.5.1-0ubuntu3
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jerry 1378 F.... pulseaudio
BuildID: 20120825190343
Channel: Unavailable
Date: Thu Aug 30 08:55:31 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120827)
IpRoute:
 default via 192.168.0.1 dev wlan0 proto static
 169.254.0.0/16 dev wlan0 scope link metric 1000
 192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.5 metric 9
PrefSources: prefs.js
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=15.0/20120825190343 (In use)
RelatedPackageVersions:
 rhythmbox-mozilla 2.97-1ubuntu4
 totem-mozilla 3.4.3-0ubuntu2
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/16/2010
dmi.bios.vendor: Acer
dmi.bios.version: V3.12(DDR3)
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JE02_PT
dmi.board.vendor: Acer
dmi.board.version: V3.12(DDR3)
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V3.12(DDR3)
dmi.modalias: dmi:bvnAcer:bvrV3.12(DDR3):bd12/16/2010:svnAcer:pnAOD255E:pvrV3.12(DDR3):rvnAcer:rnJE02_PT:rvrV3.12(DDR3):cvnAcer:ct10:cvrV3.12(DDR3):
dmi.product.name: AOD255E
dmi.product.version: V3.12(DDR3)
dmi.sys.vendor: Acer