Mozilla - a bug on the off. website under ... Firefox!

Mozilla / 5.0 (Windows; U; Windows NT 5.1; en; rv: 1.8.1.13) Gecko / 20080311 Firefox / 2.0.0.13

We look at select on the right.
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I downloaded HTML Validator, I saw such a cool thing. I thought ... my own website in my own browser ...

There is a bug here >>

PS Plugin download page.