This tracker-blocking tool is a new project of the Electronic Frontier Foundation and uses an algorithm to “learn” which social or ad networks are tracking you over time.
That means the tool takes awhile to get going. It initially allows third-party trackers until it detects patterns in third-party requests. Then it will start automatically blocking what it considers “non-consensual invasions of people’s privacy,” according to its FAQ.
EFF decided to use an algorithm over a compiled filter list of trackers to make the extension harder to circumvent.
“Blocking algorithmically…is more responsive and is able to better protect users from all trackers, not just the ones we have identified as a problem,” Cooper Quintin, a technologist working with EFF, wrote in an email.