How to swee youtube videos,

Thu Jul 31 22:51:55 UTC 2008

In firefox I can see and hear videos that are .mpg or.wmv but on youtube
I can see the video but not hear the sound.

How can this be fixed? This is f9 I am using.
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Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam at sbcglobal.net