Why won’t videos play properly in Firefox when Chrome has no problems?
Question by Nouri Alnahawi /
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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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Answers (16)
  • Hiren Patel

    Update Firefox & Adobe Flash Player To resolve the issue.

  • Amit Sinha

    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

  • April Eum

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

  • josemon maliakal

    you better install a flash player plugin for your firefox

  • Kylee Kanavas

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

    • bw

      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.

  • gmc

    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.

  • gmc

    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

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

  • Min Shum

    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.

  • GrrGrrr

    what were the processes u saw consuming 100% CPU?

    • Nouri Alnahawi

      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.

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