system locks up

g mail files and just about every thing when they get used I dont know how to report packages

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: firefox 11.0+build1-0ubuntu0.11.04.1
ProcVersionSignature: Ubuntu 2.6.38-14.58-generic 2.6.38.8
Uname: Linux 2.6.38-14-generic i686
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jack 1526 F.... pulseaudio
BuildID: 20120310010757
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfdff8000 irq 41'
   Mixer name : 'Realtek ALC1200'
   Components : 'HDA:10ec0888,103c2a5e,00100101'
   Controls : 39
   Simple ctrls : 21
Channel: release
CheckboxSubmission: 52e57d8a22eed617263cff58d652aa04
CheckboxSystem: 6ce041aeed0a2c17b3343b66d157175d
Date: Sun Apr 15 17:10:01 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Ubuntu Firefox Modifications - <email address hidden>, Version=0.9.4, minVersion=4.0b6, maxVersion=10.*, Location=app-system-share, Type=extension, Active=Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
IpRoute:
 68.56.156.0/23 dev eth0 proto kernel scope link src 68.56.156.131 metric 1
 169.254.0.0/16 dev eth0 scope link metric 1000
 default via 68.56.156.1 dev eth0 proto static
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=11.0/20120310010757 (Running)
RfKill:

RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: Upgraded to natty on 2011-05-08 (343 days ago)
dmi.bios.date: 07/27/2007
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 5.21
dmi.board.name: Leonite2
dmi.board.vendor: ASUSTek Computer INC.
dmi.board.version: 6.00
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: 1111
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr5.21:bd07/27/2007:svnHP-Pavilion:pnGN699AA-ABAa6212n:pvr:rvnASUSTekComputerINC.:rnLeonite2:rvr6.00:cvnHewlett-Packard:ct3:cvr1111:
dmi.product.name: GN699AA-ABA a6212n
dmi.sys.vendor: HP-Pavilion