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Many youtube videos will not play in Firefox - I get the error message - "no video with supported format and MIME type found"

  • 3 replies
  • 1 has this problem
  • 39 views
  • Last reply by cor-el

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this is a recent problem - the videos play in Chrome and Explorer, but not in Firefox

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hello, please try to refresh firefox and see if this can address the issue...

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This happens if Firefox uses the HTML5 media player and can't play the media file.

Detecting Playback (HTMLMediaElement.prototype.canPlayType):