how do I change French Firefox language settings to English?

I'm using a French Mac, OSX Tiger. It came with Firefox installed in French and although I've been able to change the language settings of every other application, French language Firefox is beating me and I don't want to uninstall it and start all over again. Under the "Tools" tab, I can't find any "Option· options.

Answers:
Go to Tools, Options, General, Languages. You can add the language from there if it is not listed (Select language to add).

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to to tools options advanced and there will be a place to change the language there

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