firefox lags when I try to close a single opened tab

[Visor2580]

When several tabs are opened and I try to close one, everything works fine. But only one tab is opened and I try to close it, Firefox doesn't responce for ~10 seconds, then it showes an error (something about javascript scenario), closes the tab and opens a new tab, which shows my homepage.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: firefox 9.0.1+build1-0ubuntu0.11.10.2
ProcVersionSignature: Ubuntu 3.0.0-15.26-generic 3.0.13
Uname: Linux 3.0.0-15-generic i686
NonfreeKernelModules: wl
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu4
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: angstrem 1866 F.... pulseaudio
BuildID: 20111228084953
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2800000 irq 42'
   Mixer name : 'Realtek ALC269VB'
   Components : 'HDA:10ec0269,17aa6008,00100100'
   Controls : 14
   Simple ctrls : 9
Channel: release
Date: Thu Jan 26 22:45:52 2012
EcryptfsInUse: Yes
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
IpRoute:
 default via 10.22.0.1 dev eth0 proto static
 10.22.0.0/16 dev eth0 proto kernel scope link src 10.22.12.189 metric 1
 169.254.0.0/16 dev eth0 scope link metric 1000
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=9.0.1/20111228084953 (Running)
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/29/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 39CN16WW
dmi.board.asset.tag: Tag 12345
dmi.board.name: MoutCook
dmi.board.vendor: LENOVO
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnLENOVO:bvr39CN16WW:bd07/29/2010:svnLENOVO:pnINVALID:pvrLenovoB560:rvnLENOVO:rnMoutCook:rvrNotApplicable:cvnLENOVO:ct10:cvrN/A:
dmi.product.name: INVALID
dmi.product.version: Lenovo B560
dmi.sys.vendor: LENOVO

[Paul White (paulw2u)]

Visor2580,

We are sorry that we do not always have the capacity to review all reported bugs in a timely manner. You reported this bug some time ago and there have been many changes in Ubuntu since that time.

Presumably this problem was a one time occurrence and/or is no longer an issue? Can this bug report now be closed?

If we do not hear from you the bug report will close itself in approximately 60 days time.

Thank you for helping make Ubuntu better.

Paul White
[Ubuntu Bug Squad]

[Launchpad Janitor (janitor)]

[Expired for firefox (Ubuntu) because there has been no activity for 60 days.]