https://medium.com/popular-science/protect-your-privacy-online-with-these-data-guarding-browser-extensions-b3f8054820c1 >By David Nield >We all know that Facebook and other companies collect data about us. But that’s the tip of the iceberg. Web trackers, on everything from shopping sites to social networks, follow your online activities every time you dip a digital toe into the internet. These…