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youtube video doesn't play

  • 2 replies
  • 1 has this problem
  • 12 views
  • Last reply by zeroknight

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I was using Ad blocker extenstion and youtube videos stopped working, so I deleted the extension and still have the same problem and youtube videos doesn't play and give me warning messages what can I do,

I was using Ad blocker extenstion and youtube videos stopped working, so I deleted the extension and still have the same problem and youtube videos doesn't play and give me warning messages what can I do,
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Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window

You can check the connection settings.

  • Settings -> General -> Network: Connection -> Settings

If you do not need to use a proxy to connect to internet, select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":

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Google is constantly running experiments on different users. Try clearing site cookies until the issue goes away.