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  1. #1
    Firefox taking over CPU and very slow.
    Sawday's Avatar
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    24" Aluminium, 2.8 GHz, 4Gb RAM. iPad2, iPhone5s
    Firefox taking over CPU and very slow.
    For several days Firefox has crashed on me many times and is now running exceedingly slowly. I notice that that Activity Monitor is showing Firefox as often using in excess of 100% of CPU (103-107%). Is this normal and could it have anything to do with the constant crashes?

    Activiry Monitor is also showing Page ins at 1.85GB, Page outs 107.9Mb, Swop used 132.3Mb. This 4GB iMac was last rebooted just 8 hours ago? Is this a sign that something is wrong too?
    Happiness is not getting what you want, but wanting what you get.

  2. #2
    Firefox taking over CPU and very slow.
    cradom's Avatar
    Member Since
    Feb 14, 2004
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    Nederland, Texas
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    4,072
    Specs:
    13in macbook - 10.10.4
    Try clearing the caches...Tools/Clear recent History.
    Craig Domingue
    (\__/)
    (='.'=) This is Bunny. Copy and paste Bunny into your
    (")_(") signature to help him gain world domination

  3. #3
    Firefox taking over CPU and very slow.
    jram's Avatar
    Member Since
    Apr 08, 2005
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    472
    Try disabling all your extensions, then enable one at a time until you find the one causing the spike.

  4. #4
    Firefox taking over CPU and very slow.
    Sawday's Avatar
    Member Since
    Nov 19, 2006
    Location
    York, UK
    Posts
    1,120
    Specs:
    24" Aluminium, 2.8 GHz, 4Gb RAM. iPad2, iPhone5s
    Quote Originally Posted by cradom View Post
    Try clearing the caches...Tools/Clear recent History.
    Done that - no effect.
    Happiness is not getting what you want, but wanting what you get.

  5. #5
    Firefox taking over CPU and very slow.
    Sawday's Avatar
    Member Since
    Nov 19, 2006
    Location
    York, UK
    Posts
    1,120
    Specs:
    24" Aluminium, 2.8 GHz, 4Gb RAM. iPad2, iPhone5s
    Quote Originally Posted by jram View Post
    Try disabling all your extensions, then enable one at a time until you find the one causing the spike.
    OK. Had Download helper 4.9.5 and two others local to the UK. Will see if this settles things down and add back and also report back. Thanks for the info.
    Happiness is not getting what you want, but wanting what you get.

  6. #6
    Firefox taking over CPU and very slow.
    cradom's Avatar
    Member Since
    Feb 14, 2004
    Location
    Nederland, Texas
    Posts
    4,072
    Specs:
    13in macbook - 10.10.4
    Also make sure all your plugins are up to date...flash, java, etc.
    Craig Domingue
    (\__/)
    (='.'=) This is Bunny. Copy and paste Bunny into your
    (")_(") signature to help him gain world domination

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