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When you test it and it is still an issue, kindly upload the updated logs by running only once: apport-collect 1667019 and any other logs that are relevant for this particular issue. ** Changed in: firefox (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1667019 Title: browser is slow unresponsive at times Status in firefox package in Ubuntu: Incomplete Bug description: while rendering pages firefox is unresponsive and takes forever to load pages. Pages load fine in Chromium ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: firefox 51.0.1+build2-0ubuntu0.16.04.2 ProcVersionSignature: Ubuntu 4.4.0-64.85-generic 4.4.44 Uname: Linux 4.4.0-64-generic i686 AddonCompatCheckDisabled: False ApportVersion: 2.20.1-0ubuntu2.5 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: hunter 1972 F.... pulseaudio BuildID: 20170201175237 Channel: Unavailable CurrentDesktop: XFCE Date: Wed Feb 22 10:54:01 2017 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 2016-04-06 (321 days ago) InstallationMedia: Xubuntu 14.04.4 LTS "Trusty Tahr" - Release i386 (20160217.1) IpRoute: default via 192.168.0.1 dev wlan1 proto static metric 600 169.254.0.0/16 dev wlan1 scope link metric 1000 192.168.0.0/24 dev wlan1 proto kernel scope link src 192.168.0.118 metric 600 Locales: extensions.sqlite corrupt or missing Plugins: Garmin Communicator - /usr/lib/mozilla/plugins/npGarminPlugin.so (garminplugin) Java(TM) Plug-in 1.6.0_45 - /usr/lib/jvm/java-6-oracle/jre/lib/i386/libnpjp2.so Shockwave Flash - /usr/lib/adobe-flashplugin/libflashplayer.so (adobe-flashplugin) 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=51.0.1/20170201175237 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon not responding. RelatedPackageVersions: garminplugin 0.3.27-1~trusty adobe-flashplugin 1:20170214.1-0ubuntu0.16.04.1 RfKill: 1: phy2: Wireless LAN Soft blocked: no Hard blocked: no RunningIncompatibleAddons: False SourcePackage: firefox Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/01/2005 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 0U6962 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd12/01/2005:svnDellInc.:pnInspiron2200:pvr:rvnDellInc.:rn0U6962:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Inspiron 2200 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1667019/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp