Too Long; Didn't Read
Not all browsers are created equal, and many are built with privacy in mind. Firefox is built upon an engine called Gecko, this is the backend that drives the browser. For iOS users, your most privacy respecting browser is Safari. Vivaldi offers a wonderful browsing experience with many Firefox-like features. Startpage’s Privacy Protection plugin or uBlock Origin can block trackers and cookies that make it past Firefox settings and have a much more private browsing experience. Tor, which has many benefits for those in need of strict anonymity, isn’t for everyday use.