When you go to many urls with lots of images and videos (such as http://news.google.com/news/url?sr=1&ct2=us%2F1_0_s_1_1_a&sa=t&usg=AFQjCNF3YmGSJKFgDC92d6FUG8AmbybUzg&cid=52779069898901&url=http%3A%2F%2Fwww.mirror.co.uk%2Fnews%2Fworld-news%2Fbarack-obama-filmed-hiding-wedding-7633906&ei=hDz3Vsi-DZKLhAG107fYDw&rt=HOMEPAGE&vm=STANDARD&bvm=section&did=5638657433709108861&sid=en_us-sfy&ssid=sfy&st=1&at=dt0&eid=%2Fm%2F02mjmr&ise=false&insrc=8) the page seems to load ok, but then Firefox greys out and then right after that the mouse pointer stops moving. One must do a hard power off, power on to get the machine to work again. Just recently started happening as of version 45 update of firefox. Tried restarting in safe mode and it still does it. Quite frustrating. Seems every page from news.google.com will cause the issue although you can load news.google.com ok.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: firefox 45.0+build2-0ubuntu0.14.04.1
ProcVersionSignature: Ubuntu 3.19.0-56.62~14.04.1-generic 3.19.8-ckt15
Uname: Linux 3.19.0-56-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tom 2209 F.... pulseaudio
/dev/snd/controlC1: tom 2209 F.... pulseaudio
BuildID: 20160304114926
Channel: Unavailable
CurrentDesktop: Unity
Date: Sat Mar 26 18:50:32 2016
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2015-10-15 (163 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
IpRoute:
default via 192.168.1.1 dev wlan0 proto static
192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.105 metric 9
Locales: extensions.sqlite corrupt or missing
PrefSources: prefs.js
ProcEnviron:
LANGUAGE=en_US
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=45.0/20160304114926 (In use)
RelatedPackageVersions:
totem-mozilla 3.10.1-1ubuntu4
rhythmbox-mozilla 3.0.2-0ubuntu2
RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: N56JN.202
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: N56JN
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN56JN.202:bd04/01/2014:svnASUSTeKCOMPUTERINC.:pnN56JN:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnN56JN:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: N56JN
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
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.
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apport-collect 1562436
and any other logs that are relevant for this particular issue.