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This video won't display: http://www.youtube.com/watch?v=iDnEkFSMRik (It does with IE)

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  • 最近回覆由 cor-el

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Win 7 Pro; FF 17.0.1; Flash 11.5

Video http://www.youtube.com/watch?v=iDnEkFSMRik will not display. (It does with IE)

How to resolve?

Win 7 Pro; FF 17.0.1; Flash 11.5 Video http://www.youtube.com/watch?v=iDnEkFSMRik will not display. (It does with IE) How to resolve?

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Does it has any effect if you are in HTML5 mode for YouTube and display that video via the native HTML5 player?

Note that HTML5 mode may not work if the video is only in H.264 format.


If you use extensions (Tools > Add-ons > Extensions) like Adblock Plus or NoScript or Flash Block that can block content then make sure that such extensions aren't blocking content.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do not click the Reset button on the Safe mode start window or otherwise make changes.