I've recently found a extension for Firefox (and it's forks) called Chameleon, which primary objective is to spoof various data about user, ranging from used operating system and browser to things like X-Forwarded-For/Via IP, but it's not all! There are things like turning off referers, blocking CSS Exfil, changing WebRTC policy (or turning it off completely) and much more! This extension is an absolute must for someone, that truly cares about privacy in the internet.
