FF needs a google sandbox like the facebook one. I'm tired of sites knowing who I am, showing my picture and name and asking if I want to sign in with my google

FF needs a google sandbox like the facebook one. I'm tired of sites knowing who I am, showing my picture and name and asking if I want to sign in with my google profile, when I get to their site that I've never been to before. I just hit the back button and don't browse those sites, but it's really annoying google tracking you everywhere and in your face about it.