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Upgrading to Firefox 5.

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I am currently running Firefox 3.6.20 and would like to know the system requirements that are required to upgrade to Firefox 5. I have a very old computer which is running Windows XP, has 256 RAM and 633Mb CPU.

Is this enough?

I am currently running Firefox 3.6.20 and would like to know the system requirements that are required to upgrade to Firefox 5. I have a very old computer which is running Windows XP, has 256 RAM and 633Mb CPU. Is this enough?

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No, it isn't. Best to stick with Firefox 3.6.x
http://www.mozilla.com/en-US/firefox/5.0/system-requirements/