Flash player stuttering or hanging in Firefox?

Written on June 6th, 2009 // Stored in Geekery

Image representing YouTube as depicted in Crun...
Image via CrunchBase

I’ve been suffering from this for a while. In Firefox, online flash players (Youtube etc) hangs every few seconds, meaning you miss vital parts of the video.
I’ve discovered a fix that doesn’t seem to be anywhere else:
1) Type about:config into address bar and press Enter.
2) Right click anywhere to bring up a submenu
3) Choose ‘New’ then ‘integer’
4) Paste the following into the dialogue that appears: browser.cache.memory.capacity
5) Click Ok
6) Specify amount in kb (about 80000 should be ok) in the next dialogue that appears
7) Restart Firefox and happy surfing.

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14 Responses to “Flash player stuttering or hanging in Firefox?”

  1. Simon says:
    July 17, 2009 at 4:55 pm

    Holy shit, that actually worked! Thanks so much, have been looking for a solution for this for ages!

  2. ASH says:
    July 17, 2009 at 6:54 pm

    Finally a real fix! Thank you so much!
    no more it is my vid cards or cpus fault

  3. Gecko Bloggle says:
    July 23, 2009 at 11:12 pm

    Yeah, seriously. I’ve been thinking this was just a permanent issue between Flash/Shockwave and Firefox somehow.

    Nice to see someone’s cracked it.

    Should be on the FAQ for Youtube or something.

  4. Azzmodan says:
    September 28, 2009 at 3:36 pm

    This worked wonders, thanks a lot. I almost started to use chrome just because of this.

  5. Lycan says:
    October 20, 2009 at 9:53 am

    This didnt work for me bro!!! I have stuttering going on at GAMETRAILERS.COM with the new flash player and I never had this problem before!!! only with IE but I am using FIREFOX pretty long time now… Can you help me out? please mail me or whatever!
    Thanks and PEACE

  6. Bushido says:
    October 24, 2009 at 3:42 pm

    Thanks for the tip, it worked.

  7. Electric.Paganini says:
    October 27, 2009 at 2:23 am

    Thanks a lot. I’d tried a few other things, but this is the first fix that seems to do the job. I was getting rather annoyed.

  8. Mike Dedmon says:
    November 12, 2009 at 10:27 pm

    Did this months ago, and it still makes no difference. I’m surprised with the amount of complaints I see about this issue and the above fix still not working that someone hasn’t responded somewhere. I have to watch all my video in IE or Chrome. UGGH!!!

  9. Recyclops says:
    November 26, 2009 at 1:18 pm

    This actually worked. Thanks!

  10. mbaharvard says:
    December 2, 2009 at 12:26 am

    Awesome find. How on earth did you discover this fix?
    Thank You!

  11. mbaharvard says:
    December 2, 2009 at 12:55 am

    BTW, I had minor stuttering at 8000 so I upped the integer to 180000 and it seems to work better with 4 Gigs of ram.

    If I see the issue again, I’ll try increasing it once more.

    So far, so good!

  12. Zombee says:
    February 26, 2010 at 10:17 am

    Thx a bunch Bro! Worked like a charm! I was about to get the 12 gauge out for my shiny new Win 7 box… Upped the session save interval to 3 mins and used 80000 as you suggested for cache and it seems to be working good!
    Hoo-yah!

  13. Matt says:
    February 28, 2010 at 6:24 am

    I love you.

  14. dynamitetony says:
    March 3, 2010 at 4:55 pm

    nice, nice , nice

    thank you so much

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