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Thread: firefox using 40% cpu

  1. #1
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    Default firefox using 40% cpu

    I often hear the fan on my laptop on and when i look the the processes, i see that it is firefox using 40% cpu! what could it possibly be doing, as i have only one tab open? is this something to do with extensions that i have loaded? how does one find out what extension is using cpu in firefox?
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  2. #2
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    Default Re: firefox using 40% cpu

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  3. #3
    dd NNTP User

    Default Re: firefox using 40% cpu

    On 11/15/2012 10:36 AM, firestomper412 wrote:
    >
    > I often hear the fan on my laptop on and when i look the the processes,
    > i see that it is firefox using 40% cpu! what could it possibly be doing,
    > as i have only one tab open?


    what is in that one tab? is it just a page of text...or is it a java
    game, or a flash game, or a youtube video, or or or or

    > is this something to do with extensions that i have loaded?


    probably...but i'm not sure which (if any) extensions might be real hogs
    when not actually being used....


    > how does one find out what extension is using cpu in firefox?


    i don't know an easy way, but just disable each extension, one at a time
    and wait a few seconds to see how your readout (of percent cpu) changes
    with each..

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    Default Re: firefox using 40% cpu

    Quote Originally Posted by firestomper412 View Post
    what could it possibly be doing
    It could be running several flash applets on the page you are viewing.

    I'm sure that there are other possible causes. However, when I see firefox using high CPU, it is almost always due to flash applets.
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    Default Re: firefox using 40% cpu

    Quote Originally Posted by nrickert View Post
    It could be running several flash applets on the page you are viewing.

    I'm sure that there are other possible causes. However, when I see firefox using high CPU, it is almost always due to flash applets.
    Same experience here. But not with all sites with flash content, so badly coded flash content could be a cause too.
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  6. #6
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    Default Re: firefox using 40% cpu

    Have found what was causing CPU drain in Firefox. It was facebook toolbar, disabled addons one by one and found that it was that that one.
    Freedom is power, all i have to do is know how to use it.

  7. #7
    dd NNTP User

    Default Re: firefox using 40% cpu

    > Have found what was causing CPU drain in Firefox. It was facebook
    > toolbar, disabled addons one by one and found that it was that that one.


    happy you found the hog! welcome..

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