Just realized new Firefox Electrolysis
(https://wiki.mozilla.org/Electrolysis) may not be compatible with
legacy plugins/add-ons.  May have to disable the incompatible legacy
add-ons.

On Mon, Oct 30, 2017 at 4:59 PM, Mimmo Salomone <email address hidden> wrote:
> Also affected on Ubuntu 17.10
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1723840
>
> Title:
>   Firefox 56.0 High CPU
>
> Status in firefox package in Ubuntu:
>   Confirmed
> Status in firefox package in Arch Linux:
>   New
>
> Bug description:
>   Since the Firefox 56 upgrade, CPU utilization has been high during
>   idle and light usage.  Just typing this bugreport, here's a sample
>   top:
>
>   top - 23:02:20 up 2 days, 41 min,  5 users,  load average: 0.78, 0.80, 0.77
>   Tasks: 243 total,   2 running, 240 sleeping,   0 stopped,   1 zombie
>   %Cpu(s):  9.0 us,  0.5 sy,  0.0 ni, 90.0 id,  0.5 wa,  0.0 hi,  0.0 si,  0.0 st
>   KiB Mem :  7130052 total,  2096428 free,  2678412 used,  2355212 buff/cache
>   KiB Swap:   524280 total,   524280 free,        0 used.  4027112 avail Mem
>
>     PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
>    1895 js1       20   0 4701160 2.032g 175340 R 100.0 29.9   1086:22 firefox
>
>
>   Please let me know if I need to provide any additional debug or info.
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.04
>   Package: firefox 56.0+build6-0ubuntu0.16.04.2
>   ProcVersionSignature: Ubuntu 4.4.0-97.120-generic 4.4.87
>   Uname: Linux 4.4.0-97-generic x86_64
>   NonfreeKernelModules: nvidia_uvm nvidia
>   AddonCompatCheckDisabled: False
>   ApportVersion: 2.20.1-0ubuntu2.10
>   Architecture: amd64
>   AudioDevicesInUse:
>    USER        PID ACCESS COMMAND
>    /dev/snd/controlC0:  js1        1957 F.... pulseaudio
>    /dev/snd/controlC1:  js1        1957 F.... pulseaudio
>   BuildID: 20171003101344
>   Channel: Unavailable
>   CurrentDesktop: XFCE
>   Date: Sun Oct 15 22:57:05 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 2016-05-01 (532 days ago)
>   InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
>   IpRoute:
>    default via 10.23.21.1 dev wlp7s4  proto static  metric 600
>    10.23.21.0/26 dev wlp7s4  proto kernel  scope link  src 10.23.21.18  metric 600
>    169.254.0.0/16 dev wlp7s4  scope link  metric 1000
>   Locales: extensions.sqlite corrupt or missing
>   MostRecentCrashID: bp-5bca9619-b74f-4910-9909-6bd1b0170925
>   Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
>   PrefSources: prefs.js
>   Profiles: Profile0 (Default) - LastVersion=56.0/20171003101344 (In use)
>   RfKill:
>    0: phy0: 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: 05/28/2013
>   dmi.bios.vendor: Dell Inc.
>   dmi.bios.version: A16
>   dmi.board.name: 0D881F
>   dmi.board.vendor: Dell Inc.
>   dmi.board.version: A05
>   dmi.chassis.type: 7
>   dmi.chassis.vendor: Dell Inc.
>   dmi.modalias: dmi:bvnDellInc.:bvrA16:bd05/28/2013:svnDellInc.:pnPrecisionWorkStationT7500:pvr:rvnDellInc.:rn0D881F:rvrA05:cvnDellInc.:ct7:cvr:
>   dmi.product.name: Precision WorkStation T7500
>   dmi.sys.vendor: Dell Inc.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1723840/+subscriptions



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