Since my upgrade to saucy, after switching to firefox the mouse freezes for some seconds

[JR]

I typically have a lot of opened tabs in firefox. Since the upgrade to saucy (kubuntu) I noticed that when switching to the firefox window (via alt-tab) the mouse cursor freezes for several seconds (I'd say from 3 to 20 - not always the same). Afterwards everything runs fine.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: firefox 24.0+build1-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-8.15-generic 3.11.1
Uname: Linux 3.11.0-8-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.12.4-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: juergen 4658 F.... pulseaudio
 /dev/snd/controlC0: juergen 4658 F.... pulseaudio
 /dev/snd/pcmC0D0p: juergen 4658 F...m pulseaudio
BuildID: 20130917154415
Channel: Unavailable
Date: Fri Sep 27 11:03:51 2013
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2010-11-24 (1037 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
IpRoute:
 default via 172.16.96.1 dev eth0 proto static
 172.16.96.0/20 dev eth0 proto kernel scope link src 172.16.101.113 metric 1
 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.

 virbr0 no wireless extensions.
Locales: extensions.sqlite corrupt or missing
MarkForUpload: True
Profiles: Profile0 (Default) - LastVersion=24.0/20130917154415 (In use)
RelatedPackageVersions:
 icedtea-7-plugin 1.4-3ubuntu2
 google-talkplugin 4.6.3.0-1
 kopete 4:4.11.1-0ubuntu1
 adobe-flashplugin 11.2.202.297-0raring1
RfKill:

RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: Upgraded to saucy on 2013-08-29 (28 days ago)
WifiSyslog:

dmi.bios.date: 09/11/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 0D441T
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA04:bd09/11/2010:svnDellInc.:pnOptiPlex980:pvr:rvnDellInc.:rn0D441T:rvrA01:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 980
dmi.sys.vendor: Dell Inc.

[Paul White (paulw2u)]

 Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version.

When you test it and it is still an issue, kindly upload the updated logs by running only once:

apport-collect 1231876

and any other logs that are relevant for this particular issue.

[Launchpad Janitor (janitor)]

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