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Interesting that you believe FB can magically track 100% of your browsing history even if you are not logged into facebook and not on a site with FB integration

Interesting that you believe FB can magically track 100% of your browsing history even if you are not logged into facebook and not on a site with FB integration. However, this is something google does for sure. Thanks to chrome and search integrations in other browsers.

iuguy 14y ago
It is actually possible and Facebook does do it. Everywhere you see a facebook like button, javascript is loaded from Facebook. Facebook logs certain browser characteristics[1] with the request and uses this to identify you. Then when you log in it can match your account(s) to your browser identity. There's more complex data mining going on at Facebook but it is happening. [1] - https://www.eff.org/deeplinks/2010/01/tracking-by-user-agent https://www.eff.org/deeplinks/2010/01/tracking-by-user-agent