Sadly, I must have deleted the tab while using 38.0.5, as when I re-installed 49, everything worked fine - no excessive processor or RAM usage...
I still need to know the answer to the last sentence in my comment #2, though... -- 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/1639015 Title: firefox loads windows/tabs, freezes - screen is not refreshed Status in firefox package in Ubuntu: New Bug description: Last night, as I was about to go to bed, firefox became unresponsive, and its window area(s) ceased to refresh: if a window was minimized, the title bar left a trail as it went, and if un-minimized, did the same; any system notification menu (appears when the icon is clicked on) that encroached on the window area did not go away, etc. Today, when starting firefox, after the windows/tabs were loaded, the same thing happened. Both times, I had to use htop from a terminal to shut it down. I will try and see if I have an earlier firefox available, to see if the problem manifests with that one as well (also to have something I can use...). I will report back anything I learn. ------------------------------------------------- scott@scott-ASUS-M2N68-AM-PLUS:~$ uname -a Linux scott-ASUS-M2N68-AM-PLUS 4.8.0-26-generic #28-Ubuntu SMP Tue Oct 18 14:39:52 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux scott@scott-ASUS-M2N68-AM-PLUS:~$ lsb_release -dsc Ubuntu 16.10 yakkety scott@scott-ASUS-M2N68-AM-PLUS:~$ echo $DESKTOP_SESSION Lubuntu scott@scott-ASUS-M2N68-AM-PLUS:~$ firefox -version Mozilla Firefox 49.0.2 49.0.2+build2-0ubuntu0.16.10.2 ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: firefox 49.0.2+build2-0ubuntu0.16.10.2 ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0 Uname: Linux 4.8.0-26-generic x86_64 AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.8.0-26-generic. ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: scott 1213 F.... pulseaudio /dev/snd/controlC2: scott 1213 F.... pulseaudio /dev/snd/controlC1: scott 1213 F.... pulseaudio BuildID: 20161025164528 Card0.Amixer.info: Card hw:0 'NVidia'/'HDA NVidia at 0xdfff4000 irq 21' Mixer name : 'Realtek ALC887' Components : 'HDA:10ec0887,104383bc,00100202' Controls : 46 Simple ctrls : 22 Card1.Amixer.info: Card hw:1 'Dongle'/'CSR Audio Dongle at usb-0000:00:02.0-3, full speed' Mixer name : 'USB Mixer' Components : 'USB0a12:1004' Controls : 3 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 15 Mono: Playback 0 [0%] [-15.00dB] [on] Card2.Amixer.info: Card hw:2 'U0x46d0x825'/'USB Device 0x46d:0x825 at usb-0000:00:02.0-1.1, full speed' Mixer name : 'USB Mixer' Components : 'USB046d:0825' Controls : 3 Simple ctrls : 1 Card2.Amixer.values: Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 16 Mono: Capture 9 [56%] [19.50dB] [on] Channel: Unavailable CurrentDesktop: LXDE Date: Thu Nov 3 14:48:11 2016 DefaultProfileIncompatibleExtensions: English (South Africa) Language Pack - langpack-en...@firefox.mozilla.org English (GB) Language Pack - langpack-en...@firefox.mozilla.org Default - {972ce4c6-7e08-4474-a285-3208198ce6fd} DefaultProfilePlugins: IcedTea-Web Plugin (using IcedTea-Web 1.6.2 (1.6.2-3ubuntu1)) - /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so (icedtea-8-plugin) DefaultProfilePrefSources: prefs.js ForcedLayersAccel: False IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-10-20 (14 days ago) InstallationMedia: Lubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.1) IpRoute: default via 192.168.0.1 dev wlx001f1fd8314a proto static metric 600 192.168.0.0/24 dev wlx001f1fd8314a proto kernel scope link src 192.168.0.6 metric 600 MostRecentCrashID: bp-ace350a2-2a0c-43d8-a864-8ddc62161028 PciNetwork: Profile1IncompatibleExtensions: Global Menu Bar integration - globalm...@ubuntu.com English (South Africa) Language Pack - langpack-en...@firefox.mozilla.org English (GB) Language Pack - langpack-en...@firefox.mozilla.org Default - {972ce4c6-7e08-4474-a285-3208198ce6fd} Profile1Plugins: IcedTea-Web Plugin (using IcedTea-Web 1.6.2 (1.6.2-3ubuntu1)) - /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so (icedtea-8-plugin) Profile1PrefSources: prefs.js Profile2Extensions: extensions.sqlite corrupt or missing Profile2IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) Profile2Locales: extensions.sqlite corrupt or missing Profile2Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so Profile2PrefSources: prefs.js Profile2Themes: extensions.sqlite corrupt or missing Profiles: Profile0 (Default) - LastVersion=49.0.2/20161025164528 Profile1 - LastVersion=49.0/20160928160550 (Out of date) Profile2 - LastVersion=47.0/20160606113900 (Out of date) RelatedPackageVersions: icedtea-8-plugin 1.6.2-3ubuntu1 RfKill: RunningIncompatibleAddons: True SourcePackage: firefox UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/10/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1802 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M2N68-AM Plus dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1802:bd06/10/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2N68-AMPlus:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1639015/+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