Yes, the "Like" button is used by Facebook to track users across third-party sites. Clicking the button is not necessary for information to be transmitted to F

Yes, the "Like" button is used by Facebook to track users across third-party sites. Clicking the button is not necessary for information to be transmitted to Facebook. More information straight from Facebook: https://www.facebook.com/help/186325668085084 https://www.facebook.com/help/186325668085084