When you use the facebook friend finder, and add ur email id, and u see the people from ur adress book in ur gmail for example. But u dnt add them yet. What shows on those peoples profile? Would it show that this person from their email adress book is on facebook?
It will show those people’s profiles but if they are private it won’t show the entire profile. All it is doing is taking your email contacts and doing a search for you. Just as if you were using their email to search for them manually.