Unless you are using an ad-blocker to block the rather commonplace facebook widget, and their other tracking mechanisms, they may well have more of your browsin

Unless you are using an ad-blocker to block the rather commonplace facebook widget, and their other tracking mechanisms, they may well have more of your browsing history than you realize. Hell, I do use ad-blockers and block assets coming from known Facebook domains, and they probably still have more information about my browsing history than I realize.