Userscripts.org

Hi everyone! I am having trouble with unfriend finder extension. Im having two accounts in facebook, one with...@gmail.com and other with ...@yahoo.co.in. If I access yahoo account then i can see "Unfriend" button on top right corner but when I access facebook with @gmail account, I cannot see "Unfriend" button. So, its difficult in operating facebook with gmail account.

please guide me how to use it

Thanks!