firefox cpu usage

Discussion in 'Mac Basics and Help' started by gelatin, Feb 16, 2008.

  1. gelatin macrumors 6502

    Sep 16, 2006
    is it just my firefox that is using so much?
    its using from 70 to 90 percent, 423mb real memory and 1002mb virtual

    its doing my head in.
  2. Neil321 macrumors 68040


    Nov 6, 2007
    Britain, Avatar Created By Bartelby
    just looked at mine

    100.53MB real

    1.02GB virtual

    thats with no other apps running
  3. Xavier macrumors 68030

    Mar 23, 2006
    Mine is almost the same as neil321's.

    But i have iChat and iTunes open
  4. MarkMS macrumors 6502a

    Aug 30, 2006
    What type of machine is it, how much RAM do you have, and what version of Firefox is it? What I've seen is that when you have a lot of RAM, applications tend to become more liberal with it. As for the CPU, I have no idea why it's high. I use Safari 3 and I'm using about 85MB real memory, 900 MB virtual with 7 tabs open on a MBP 2.16 with 3GB RAM.

    You may want to look into Camino (from Mozilla) or the new Firefox 3 beta that just came out a few days ago. I've heard that they have crushed a bunch of bugs and it runs very fast. Just remember rename the beta version so that it doesn't interfere with your original install of Firefox.
  5. clevin macrumors G3


    Aug 6, 2006
    cpu usage spikes (~3 sec) to 70~90% is normal for most website with little flash content.

    CPU usage stays high are still normal if you kept surfing website with huge amount of flash content

    CPU usage staying high is NOT normal with website has little flash content.

    Which case best describe your situation?

    423 Real Memory is pretty high, UNLESS you have been using it for very long time and with significant amount of flash content.

    If you have 4G memory, that might be different, app tends to use more when you have more physical memory installed.

    In any situation, if you don't have too many extensions (As my personal experience, adblock, firegestures are compatible), firefox 3 beta 3 should be perfect option for you now.
  6. gelatin thread starter macrumors 6502

    Sep 16, 2006
    i have an ibook g4 with 1.25gb of RAM its firefox
    what was annoying was that i had hardly any memory left to run other programs cos it was so sluggish.
    its fine now 141mb real and 383 virtual
    this is with 2 tabs open

    last nite i had 3 tabs opened
  7. clevin macrumors G3


    Aug 6, 2006
    were you surfing flash heavy website when memory, cpu usage stayed high?
  8. gelatin thread starter macrumors 6502

    Sep 16, 2006
  9. smogsy macrumors 6502a

    Jan 8, 2008
    simlar closing and reopening firefox can really help. btw

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