For everyone wondering: Firefox extension Chameleon randomly spoofs your user agent. However, I would highly recommend NOT using this extension, or randomizing your user agent whatsoever - it only raises your entropy and makes you easier to track. You should be trying to make your browser look identical to everyone else's, not different.
This can by partially achieved by setting privacy.resistFingerprinting to true in Firefox's about:config. This won't stop Panopticlick from fingerprinting you. If you really want to reduce your fingerprint, try using the ghacks user.js [1]. If you want to make fingerprinting completely impossible, use the TOR browser [2].
Most users don't need to worry about this - uBlock origin blacklists most fingerprinting efforts by default.
Really? Firefox now enables the DNT header by default. If all Firefox users have DNT enabled, then it can't be used as a data point.
I don't like DNT, and I don't like that the EFF pushes for it. Users shouldn't have to ask to not be tracked - websites should respect your privacy by default, and if they don't, users should take control with tools such as uBlock Origin.
Also, privacy means different things to different people. Two of the most privacy advocating websites in existence, eff.org and privacytools.io, think it's OK to collect anonymous stats on site usage. Yet the authors of EasyPrivacy (a filterlist enabled by default in uBlock Origin) make no exceptions and block both of those sites from collecting data.
To be fair, your IP address cannot be used to track you much [1]. If you are using a VPN anyways, you can (and should) disable WebRTC (the website you linked shows you how).
This can by partially achieved by setting privacy.resistFingerprinting to true in Firefox's about:config. This won't stop Panopticlick from fingerprinting you. If you really want to reduce your fingerprint, try using the ghacks user.js [1]. If you want to make fingerprinting completely impossible, use the TOR browser [2].
Most users don't need to worry about this - uBlock origin blacklists most fingerprinting efforts by default.
Please read: https://www.privacytools.io/browsers/#fingerprint
[1] https://github.com/ghacksuserjs/ghacks-user.js [2] https://www.torproject.org/
More Firefox privacy extensions: https://github.com/ghacksuserjs/ghacks-user.js/wiki/4.1-Exte...