Privacy Badger is a free browser extension developed by the Electronic Frontier Foundation (EFF) that automatically detects and blocks third-party trackers that follow users across multiple websites without consent. Unlike traditional ad blockers, it uses algorithmic methods to identify tracking behavior, sends Global Privacy Control and Do Not Track signals to opt users out of data sharing, and selectively blocks only trackers rather than all ads. Privacy Badger supports multiple browsers including Chrome, Firefox, Safari, and Edge, and aims to enhance online privacy while encouraging better advertising practices.
