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I'm running 5.0.1 but I keep getting message saying I'm not running current version and I'm not protected how can I fix this?

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When I run firefox I get the following message:

URGENT! Your version of Firefox is no longer protected against online attacks. Get the upgrade - it’s fast and free!

I am running 5.0.1 and have tried upgrading several times and still get the same message.

When I run firefox I get the following message: URGENT! Your version of Firefox is no longer protected against online attacks. Get the upgrade - it’s fast and free! I am running 5.0.1 and have tried upgrading several times and still get the same message.

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You a corrupted user agent that may be corrupted and that identifies you as Firefox/3.5.5

  • Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 GTB6 (.NET CLR 3.5.30729) FBSMTWB

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