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I've have windows 7. Firefox 6.0. I am unable to view youtube and other videos using firefox. i can though using media player. just not while on the web.

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I have windows 7. firefox 6.0 And it is my web browser.

I have windows 7. firefox 6.0 And it is my web browser.

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Firefox 6? That's rather old now.

Version 6 is not secure; Mozilla discloses security flaws after each new release. Is something holding you back from upgrading to Firefox 21? Please let us know so we can suggest solutions or workarounds.