The one video I saw suggested running this betterfox.js file or some more elaborate ones. Is that really necessary?
Or are there just some settings that I should change?
(Already run ublock origin if that matters.)
really necessary?
no but there are some settings in about:config you might want to change
this is a good video (easier to follow if you are on linux) that shows installation of a profile with all the settings already in it
looks like others have it covered, but to add to it, it’s firefox after browsing a porn site
It is FireFox that has hidden settings (about:config) adjusted for privacy. It refers to using a js file such as betterfox or arkenfox, or a pre-hardened fork of FireFox (Librewolf on desktop or Mull Browser on Android). You can improve your privacy by using a hardened FireFox, however you may also encounter more issues with website compatibility. It is a trade-off, and is usually only recommended for advanced users.