That version is now dead http://news.softpedia.com/news/ubuntu-17-04-zesty-zapus-has-reached-end-of-life-upgrade-to-ubuntu-17-10-now-519360.shtml
Check the active process(es) that use the cpu and so freeze (htop) ** Changed in: firefox (Ubuntu) Status: New => Invalid -- 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/1711385 Title: Firefox slows down accidently. Even stops for long-long seconds, responds poorly. Status in firefox package in Ubuntu: Invalid Bug description: No idea what's the cause. When I close tabs the situation does not change. Sometimes I have couple of 10s of tabs open, sometimes (right now) only few. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: firefox 56.0~b3+build1-0ubuntu0.17.04.2 [origin: LP-PPA-mozillateam-firefox-next] ProcVersionSignature: Ubuntu 4.10.0-33.37-generic 4.10.17 Uname: Linux 4.10.0-33-generic x86_64 AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.10.0-33-generic. ApportVersion: 2.20.4-0ubuntu4.5 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: molnar_geza 1054 F.... pulseaudio /dev/snd/controlC1: molnar_geza 1054 F.... pulseaudio BuildID: 20170816165121 Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfdef8000 irq 32' Mixer name : 'Realtek ALC888' Components : 'HDA:10ec0888,14622260,00100001' Controls : 33 Simple ctrls : 15 Card1.Amixer.info: Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfebec000 irq 33' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100000' Controls : 7 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Channel: beta CurrentDesktop: LXDE Date: Thu Aug 17 16:48:11 2017 DefaultProfileExtensions: extensions.sqlite corrupt or missing DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) DefaultProfileLocales: extensions.sqlite corrupt or missing DefaultProfilePlugins: Google Talk Plugin Video Renderer - /opt/google/talkplugin/libnpo1d.so (google-talkplugin) Google Talk Plugin - /opt/google/talkplugin/libnpgoogletalk.so (google-talkplugin) Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so DefaultProfilePrefSources: /usr/lib/firefox/defaults/pref/vendor-gre.js /usr/lib/firefox/defaults/pref/channel-prefs.js prefs.js DefaultProfileThemes: extensions.sqlite corrupt or missing ForcedLayersAccel: False IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback IpRoute: default via 192.168.0.1 dev wlp2s0 proto static metric 600 192.168.0.0/24 dev wlp2s0 proto kernel scope link src 192.168.0.19 metric 600 Profile1Extensions: extensions.sqlite corrupt or missing Profile1IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) Profile1Locales: extensions.sqlite corrupt or missing Profile1Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so Profile1PrefSources: /usr/lib/firefox/defaults/pref/vendor-gre.js /usr/lib/firefox/defaults/pref/channel-prefs.js prefs.js Profile1Themes: extensions.sqlite corrupt or missing Profiles: Profile0 (Default) - LastVersion=56.0/20170816165121 (In use) Profile1 - LastVersion=56.0/20170811072257 (Out of date) RelatedPackageVersions: google-talkplugin 5.41.3.0-1 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no RunningIncompatibleAddons: False SourcePackage: firefox UpgradeStatus: Upgraded to zesty on 2017-05-10 (99 days ago) dmi.bios.date: 09/09/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A1226IMS V1.01 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: MS-1226 dmi.board.vendor: MSI dmi.board.version: Ver 1.000 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA1226IMSV1.01:bd09/09/2008:svnMicro-StarInternational:pnMEGABOOKPX200:pvrVer1.000:rvnMSI:rnMS-1226:rvrVer1.000:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: MEGA BOOK PX200 dmi.product.version: Ver 1.000 dmi.sys.vendor: Micro-Star International To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1711385/+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