Can Firefox Plugin, Greasmonkey, be detected by Web Servers?

Posted by Babar on Stack Overflow See other posts from Stack Overflow or by Babar
Published on 2010-04-30T07:41:52Z Indexed on 2010/04/30 7:47 UTC
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Hi,

My friend's account for some Facebook game was suspended on the grounds that he had Greasemonkey installed on his browser. He is asked to uninstall Greasemonkey and account has been restored. My question is how can a web server detect a client side plugin presence?

I assume that Greasemonkey or greasemonkey scripts operate on the client side only so it would not be possible for the server to detect it.

Thanks.

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