content: I originally did this when I started to learn of not only the abuse of cookies, but the potential (at the time) for malware to find its way into cookies, and potentially be executed from remote locations. It was really shitty to have to let every cookie in for sites that you had no idea were required for certain objects and players to function.  I ran multiple browsers for work, but also because sometimes you didn't want to allow cookies from some sites on your main browser.  It was also impossible to let someone use my go-to browser, since all the sites that I didn't white list were almost guaranteed to be broken. The best way to prevent my browsers from accessing sites I don't want it to, is to have a massive hosts file  There are others, but here is a starting point for looking for hosts black lists: https://www.ahbl.org/ or https://github.com/StevenBlack/hosts