This gist misleads in a few ways by being so vague and seems to be more about disabling every somewhat useful feature that sounds bad for tinfoil hat enthusiasts. Still has useful things, like disabling Pocket if you don’t want it and forcing newer TLS versions. Others are silly (disabling things that already ask for your permission, like location), dangerous (disabling Google Safe Browsing), or already exposed in the settings UI anyway (DNT, tracking protection, telemetry). To each their own, use these if you think they’re important to you, but for most people it’s fear-mongering about nothing and enabling a few things in the privacy settings page is sufficient.