Saving time by applying a non-solution 9like removing one browser instead of treating the root cause) is not actually saving anything. You just kick the problem further down the road. Firefox prefs are documented even if not in the most user friendly way [0][1][2][3]. For the most part performing some basic hardening and other useful config on the browser takes less than a day. A person with some IT background shouldn't have too much problems doing it and it's more or less a one time thing.
[0] https://dxr.mozilla.org/mozilla-release/source/modules/libpr...
[1] https://dxr.mozilla.org/mozilla-release/source/browser/app/p...
[2] https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Ent...
[3] https://support.mozilla.org/en-US/products/firefox-enterpris...