Comment 0 for bug 974146

When you make a clic right on Firefox's icon, you can select Open a new , Firefox Web Broswer, lock to launch, quit.

I think you should add Private navigation. You could find it in Tool -> Start Private Browsing (or Ctrl + Shift + P). Or in terminal, launch firefox -private.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: firefox 11.0+build1-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13
Uname: Linux 3.2.0-21-generic x86_64
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gris 1785 F.... pulseaudio
BuildID: 20120403131243
Channel: release
Date: Thu Apr 5 13:02:06 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
Profiles: Profile0 (Default) - LastVersion=11.0/20120403131243 (Running)
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/05/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: CALPELLACRB.86C.0000.X.0000000000
dmi.board.asset.tag: Tag 12345
dmi.board.name: W760C
dmi.board.vendor: CLEVO Co.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: CLEVO
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrCALPELLACRB.86C.0000.X.0000000000:bd05/05/2010:svnCLEVOCo.:pnW76OC:pvrNotApplicable:rvnCLEVOCo.:rnW760C:rvrNotApplicable:cvnCLEVO:ct9:cvrN/A:
dmi.product.name: W76OC
dmi.product.version: Not Applicable
dmi.sys.vendor: CLEVO Co.