Privacy Badger

Privacy Badger is a free and open-source browser extension for Google Chrome, Mozilla Firefox, Edge, Brave, Opera, and Firefox for Android created by the Electronic Frontier Foundation (EFF). Its purpose is to promote a balanced approach to Internet privacy between consumers and content providers by blocking advertisements and tracking cookies that do not respect the Do Not Track setting in a user's web browser. A second purpose, served by free distribution, has been to encourage membership in and donation to the EFF.