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.)
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.
only recommended for advanced users.
So you don’t think it’s necessary for privacy?
For general use, no it is not necessary. But it depends on your threat model, or exactly how private you want to be.
I suggest looking at the pages on FireFox by Privacy Guides:
Desktop browser recommendations: https://www.privacyguides.org/en/desktop-browsers/#mullvad-leta
FireFox privacy 2021 update: https://blog.privacyguides.org/2021/12/01/firefox-privacy-2021-update/
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
As many others have pointed out Arkenfox is a great way to harden Firefox that saves much of the effort of manually editing about:config
Because I didn’t see one already here’s a link to an install tutorial for Arkenfox in case it helps anyone to get started.



