Why won’t videos play properly in Firefox when Chrome has no problems?

Nouri Alnahawi August 15, 2012
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Hi guys,

Yesterday I was watching stuff online as usual when suddenly all videos stopped playing, even YouTube videos would only buffer 10-20 seconds and then stop. I normally use Firefox, so I switched to Chrome, and this problem didn’t happen so I can rule out connection or bandwidth problems.

I have noticed that there are some weird processes appearing in the task manager in addition to a high CPU usage when I start Firefox. It’s nearly 100% all the time! I tried uninstalling and reinstalling Firefox, disabling some add-ons, but nothing worked.

Could it be some kind of a bug or malicious program that got stuck on Firefox ? I really need help because I love Firefox and this just sucks.


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  1. Hiren Patel
    September 13, 2012 at 8:42 am

    Update Firefox & Adobe Flash Player To resolve the issue.

  2. Amit Sinha
    September 1, 2012 at 12:04 pm

    update your adobe flash version and shock wave player and use current version of firefox.
    If problem persists check for viruses and malware.

    There might be other reason for buffering the videos is that other applications using your network resources same time or your are try to watching the videos in peak time

  3. April Eum
    August 21, 2012 at 11:58 pm

    try to upgrade to the latest flash player for your Firefox browser

  4. Guy
    August 20, 2012 at 6:55 pm
  5. josemon maliakal
    August 20, 2012 at 2:22 pm

    you better install a flash player plugin for your firefox

  6. Kylee Kanavas
    August 15, 2012 at 9:17 pm

    Try reinstalling your flash, or your computer. Sometimes the flash will crash in chrome.

    • bw
      August 30, 2012 at 11:24 am

      Reinstall computer! What a stupid idea. It would take me weeks to redo all settings as I like it for my hundreds of programs. Reinstalling the operating system is for noobs.
      I have a Windows 2000 system that has run for 10 years without reinstalling.
      You have to learn some basics in computer administration.

  7. gmc
    August 15, 2012 at 1:09 pm

    p.s. BEFORE you do the above, make sure you set auto-update OFF in all your browsers! Otherwise the update will just happen again after all your hard work.

  8. gmc
    August 15, 2012 at 1:08 pm

    Flash is the programme that handles videos in your browser. And there was a Flash update yesterday. If you have your FF add-ons set to "auto-update", Flash will have updated automatically. I suspect this new version of Flash may be the culprit for the stuttering you're experiencing when viewing videos, as it caused issues for me too. Steps:

    1. Remove Flash using the Adobe Flash removal tool.

    2. Reboot.

    3. Load an earlier version of Flash [I'm using early April 2012 release.]

    The removal tool AND the 5th April release of flash re both included in the following Adobe download:

    Version: 11.2 - Released 5/04/2012.

    • Nouri Alnahawi
      August 16, 2012 at 2:06 pm

      Thanks man :D The new flash version was the problem, and the newest firefox version is also unstable.

  9. Min Shum
    August 15, 2012 at 1:04 pm

    Are you using FF 15 for developers. I bet the reason your Firefox does not play videos is because the current version of the Flash player is not compatible with the Beta version of FF.

  10. GrrGrrr
    August 15, 2012 at 12:41 pm

    what were the processes u saw consuming 100% CPU?

    • Nouri Alnahawi
      August 15, 2012 at 7:54 pm

      Well for starters firefox.exe also plug-in-container.exe and something called Idle Process. However I see a lot of new weird suspicious stuff.

  11. Aman Verma
    August 15, 2012 at 8:07 am

    may be flash player problem

  12. ReĆ½ Aetar
    August 15, 2012 at 4:00 am

    just disable all google services
    stop any process associated to google like google updater and others (they comes with any google product like chrome picassa and so on then try playing sometimes the problem happens in my pc also you wont be able to download also youtube videos and data from some other sites and firefox stops from loading pages sometimes..
    Its not a firefox problem

  13. ferdinan Sitohang
    August 15, 2012 at 1:34 am

    As i know that firefox has 14.0.1 for its newest version, i see that your is version 15(may be it is a beta version). Indeed firefox has a problem when it is accessing a youtube, because it consumes more of your resources rather than chrome. But try to use a stable one i think.

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