Privacy Badger automatically learns to block hidden trackers. Privacy Badger is made by the leading digital rights nonprofit EFF to stop companies from spying on you. Privacy Badger sends the Global Privacy Control signal to opt you out of data sharing and selling, and the Do Not Track signal to tell companies not to track you. If trackers ignore these signals, Privacy Badger will learn to block them. Besides automatic tracker blocking, Privacy Badger replaces potentially useful trackers (video players, comments widgets, etc.) with click-to-activate placeholders, and removes outgoing link click tracking on Facebook and Google, with more privacy protections on the way. To learn more, see the FAQ on Privacy Badger's homepage.