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Firefox does not play videos online except on YouTube. I have the latest updated flash player . What is the problem ?

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  • 最近回覆由 cor-el

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The videos do not play except on YouTube. It shows an error message that it can't play the video. I have the latest updated Adobe Flash player. And the same videos work well on IE and GC !

The videos do not play except on YouTube. It shows an error message that it can't play the video. I have the latest updated Adobe Flash player. And the same videos work well on IE and GC !

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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).