Privacy Badger, a browser add-on for Firefox and Chrome, works to block advertisers from tracking where you go and what you do on the web. As many people know, advertisers employ tracking companies to follow users on the web, gathering information about purchasing habits, interests, political views, health status, personal finances, and other information. When installed, Privacy Badger tracks the trackers. If an online entity seems to be following you across multiple websites without your permission, Privacy Badger then automatically blocks that advertiser from loading any more content in your browser. Unlike other similar extensions, Privacy Badger does not use a blacklist to determine what to block but instead detects tracking sites by how they behave. To install, simply select "Install Privacy Badger and Enable Do Not Track," then click "Add extension." Once the add-on is installed, it can be useful to go through the "helpful tips" to fully understand the service.