Results 1 to 8 of 8

Thread: Firefox consuming all CPU power

  1. #1

    Default Firefox consuming all CPU power

    openSUSE 13.1 64bit
    Firefox 28.0
    Plugins = IcedTea-Web Plugin 1.4.2 , Flash 11.2.202.346

    Whenever i go to this website http://leavetheworldbehind.com/ in firefox, my CPU fan goes crazy and i look in the System Monitor and see firefox consuming 99% CPU.

    I've tried the same webite on Chrome and it idles at 3-4% CPU.

    I thought maybe flash was to blame, but it's the actual Firefox process that is using all the CPU power, not the plugin-container process.

    The site is not malicious or anything, i think it's just a bug with Firefox or maybe i'm missing a plugin from firefox.


  2. #2
    Join Date
    Aug 2010
    Location
    Chicago suburbs
    Posts
    12,497
    Blog Entries
    3

    Default Re: Firefox consuming all CPU power

    Quote Originally Posted by cra1g321 View Post
    Whenever i go to this website http://leavetheworldbehind.com/ in firefox, my CPU fan goes crazy and i look in the System Monitor and see firefox consuming 99% CPU.
    I tried the site. No problem. But then, I am using "noscript".

    I allowed scripting from "leavetheworldbehind.com", and firefox shot up to 70% cpu. It was not flash, because I am using "flashblock" to stop that.

    It looks like a javascript loop.

    That it is fine in chrome, but not firefox, does not prove that it is a firefox bug. It is quite possible that the site is looking at browser identification and using different javascript for chrome.
    openSUSE Leap 15.1; KDE Plasma 5;
    testing Leap 15.2Alpha

  3. #3
    Join Date
    Nov 2009
    Location
    Pennsylvania, USA
    Posts
    405

    Default Re: Firefox consuming all CPU power

    Think of Firefox as an apple, Chrome as an orange. Should not be compared.

    Firefox use the Gecko rendering engine. Chrome uses the Blink rendering engine.

    Firefox uses one process and a plugin-container. Chrome uses multiple processes. I see seven running with my home page open in Chrome. Same with your link.

    Why is Firefox using so much CPU? The site is a poorly designed resource hog.

    Can't dismiss the Flash window even after clicking the x.
    Desktop: AMD Athlon(tm) II X3 455 3.3 Ghz | 4 GB RAM | GeForce GT 630

  4. #4

    Default Re: Firefox consuming all CPU power

    Anyway plugin-container is a very consuming process ... (the processor is always running hot, both in Windows and Linux).

  5. #5
    Join Date
    Feb 2009
    Location
    Spain
    Posts
    25,547

    Default Re: Firefox consuming all CPU power

    On 2014-04-21 15:56, PiElle wrote:
    >
    > Anyway plugin-container is a very consuming process ... (the processor
    > is always running hot, both in Windows and Linux).


    No, it is not plugin-container. That's just a sort of wrapper that runs
    something else, like flash, which is the actual hog.

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 13.1 x86_64 "Bottle" at Telcontar)

  6. #6
    Join Date
    Feb 2009
    Location
    Spain
    Posts
    25,547

    Default Re: Firefox consuming all CPU power

    On 2014-04-21 02:26, nrickert wrote:
    >
    > cra1g321;2638139 Wrote:
    >> Whenever i go to this website http://leavetheworldbehind.com/ in
    >> firefox, my CPU fan goes crazy and i look in the System Monitor and see
    >> firefox consuming 99% CPU.

    >
    > I tried the site. No problem. But then, I am using "noscript".
    >
    > I allowed scripting from "leavetheworldbehind.com", and firefox shot up
    > to 70% cpu. It was not flash, because I am using "flashblock" to stop
    > that.
    >
    > It looks like a javascript loop.


    I don't know of a way to find out which script is hogging resources. Or
    which tab. Then kill just that one.

    :-?

    --
    Cheers / Saludos,

    Carlos E. R.
    (from 13.1 x86_64 "Bottle" at Telcontar)

  7. #7
    Join Date
    Aug 2010
    Location
    Chicago suburbs
    Posts
    12,497
    Blog Entries
    3

    Default Re: Firefox consuming all CPU power

    Quote Originally Posted by robin_listas View Post
    I don't know of a way to find out which script is hogging resources. Or
    which tab. Then kill just that one.
    I don't know enough about javascript to know if you can close just one script.

    In this case, I did know which tab was causing problems. Closing that browser tab dropped the firefox cpu usage down to negligible.
    openSUSE Leap 15.1; KDE Plasma 5;
    testing Leap 15.2Alpha

  8. #8

    Default Re: Firefox consuming all CPU power

    Quote Originally Posted by rafter22 View Post
    Can't dismiss the Flash window even after clicking the x.
    Works fine here.

    So it looks like it's not Firefox but just the javascript code that is causing the high CPU usage.

    Thanks for the replies.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •