[Bug 952901] [NEW] side bar disappears on some websites

[Steven]

Public bug reported:

on some webites the right side bar with the gab/scroll bar disappears and cannot be found by re-sizing the window, restarting firefox or refreshing the tab.
The bottom scroll bar also disappears so that it's not possible to scroll right to make it visible.
Tabs and scroll arrows do not always work, sometime up/down but not right/left
Sites that have this problem include launchpad.net, googlemail.co.uk, facebook.com, greyville.com
Sites that do not have this problem include bikepimp.co.uk, rutlandcycling.com, jejamescycles.co.uk, chainreactioncycles.com

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: firefox 10.0.2+build1-0ubuntu0.11.10.1
ProcVersionSignature: Ubuntu 3.0.0-15.26-generic 3.0.13
Uname: Linux 3.0.0-15-generic i686
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  steven     2228 F.... pulseaudio
 /dev/snd/controlC1:  steven     2228 F.... pulseaudio
BuildID: 20120216101208
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with STAC9750,51 at irq 5'
   Mixer name	: 'SigmaTel STAC9750,51'
   Components	: 'AC97a:83847650'
   Controls      : 38
   Simple ctrls  : 24
Card1.Amixer.info:
 Card hw:1 'Camera'/'Camera at usb-0000:00:1d.7-6.3, full speed'
   Mixer name	: 'USB Mixer'
   Components	: 'USB046d:08f0'
   Controls      : 3
   Simple ctrls  : 2
Channel: release
CheckboxSubmission: 3f05f4c2ad33795bd2ea179065fdea51
CheckboxSystem: efd05939b08abfe86caa44c3820f8e56
Date: Mon Mar 12 11:10:26 2012
EcryptfsInUse: Yes
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
IncompatibleExtensions:
 German Dictionary - ID=de-DE at dictionaries.addons.mozilla.org, Version=2.0.2, minVersion=1.9a8pre, maxVersion=2.0.*, Location=app-profile, Type=extension, Active=Yes
 NoScript - ID={73a6fe31-595d-460b-a920-fcc0f8843232}, Version=2.3.4, minVersion=1.9a2, maxVersion=1.9.6, Location=app-profile, Type=extension, Active=Yes
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Release i386 (20101007)
IpRoute:
 default via 192.168.1.254 dev eth0  proto static 
 169.254.0.0/16 dev wlan0  scope link  metric 1000 
 192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.66  metric 1 
 192.168.1.0/24 dev wlan0  proto kernel  scope link  src 192.168.1.65  metric 2
Profiles: Profile0 (Default) - LastVersion=10.0.2/20120216101208 (Running)
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/29/2005
dmi.bios.vendor: Dell Computer Corporation
dmi.bios.version: A16
dmi.board.name: 0D2125
dmi.board.vendor: Dell Computer Corporation
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Computer Corporation
dmi.modalias: dmi:bvnDellComputerCorporation:bvrA16:bd06/29/2005:svnDellComputerCorporation:pnLatitudeD600:pvr:rvnDellComputerCorporation:rn0D2125:rvr:cvnDellComputerCorporation:ct8:cvr:
dmi.product.name: Latitude D600
dmi.sys.vendor: Dell Computer Corporation

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 oneiric running-unity

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https://bugs.launchpad.net/bugs/952901

Title:
  side bar disappears on some websites

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