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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 1677112 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/1677112 Title: my fire fox is slowing down when loading Status in firefox package in Ubuntu: Incomplete Bug description: my firefox is slowing down when loading I can't open the new tab while loading another tab it's slowing down new tab opening time and loading time ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: firefox 52.0.1+build2-0ubuntu0.16.04.1 ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44 Uname: Linux 4.4.0-66-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: tharun 1665 F.... pulseaudio /dev/snd/controlC0: tharun 1665 F.... pulseaudio BuildID: 20170317213149 Channel: Unavailable CurrentDesktop: Unity Date: Wed Mar 29 09:27:31 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 2017-01-30 (57 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) IpRoute: default via 192.168.1.1 dev wlp6s0 proto static metric 600 169.254.0.0/16 dev wlp6s0 scope link metric 1000 192.168.1.0/24 dev wlp6s0 proto kernel scope link src 192.168.1.2 metric 600 Locales: extensions.sqlite corrupt or missing Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so PrefSources: prefs.js ProcEnviron: LANGUAGE=en_IN:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_IN SHELL=/usr/bin/zsh Profiles: Profile0 (Default) - LastVersion=52.0.1/20170317213149 (In use) RunningIncompatibleAddons: False SourcePackage: firefox Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/14/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.vendor: Dell Inc. dmi.board.version: A05 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvrA05:bd11/14/2014:svnDellInc.:pnInspiron3542:pvrNotSpecified:rvnDellInc.:rn:rvrA05:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Inspiron 3542 dmi.product.version: Not Specified dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1677112/+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