Hey,
i have firefox 3.5.2 and when i go to some websites like facebook or histats they think im french and they change the text to french

is there some setting i can change so it knows im english

note its not ip dependent because it happens from multiple ips at different c classes (in america)

Try going to Tools(in Firefox) > Options> Content tab; At the bottom you should see Languages, click on the 'Choose' button and select French and Remove.

I'm not sure why you get french lang page...
You might try to clear(delete) the cookies, and visit to facebook again.

Great. I'm glad you solved this issue. :)