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How can I tell what version of Firefox I'm currently using?

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I use an internet electronic billing site for some of my cases. The billing site is incompatible with Firefox 7.1. We were told to find out what version of Firefox we are using and, if it's 7.1, we have to Re-enter our last set of bills. Please advise. Thank you.

I use an internet electronic billing site for some of my cases. The billing site is incompatible with Firefox 7.1. We were told to find out what version of Firefox we are using and, if it's 7.1, we have to Re-enter our last set of bills. Please advise. Thank you.

Chosen solution

in xp go to HELP then ABOUT FIREFOX and you can see the version down FIREFOX word.

thank you

Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

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Chosen Solution

in xp go to HELP then ABOUT FIREFOX and you can see the version down FIREFOX word.

thank you

Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.