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why YouTube can not run well

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Playing video on YouTube is always choppy

Playing video on YouTube is always choppy

Wšě wotmołwy (1)

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Your post has some strange system information:

  • Windows XP
  • Firefox 5.0.1
  • no Shockwave Flash plugin installed

Is any of that correct?? Since YouTube now defaults to an HTML5 player, it matters what OS and Firefox you have.