Then try it on a tablet, and go "What is this BS?" and start using Chrome, despite the fact that there is no NoScript, about:config, etc.
Oh wait, no, just NoScript, because about:config doesn't work in Firefox for Android anymore.
Oh wait, no, just NoScript, because about:config doesn't work in Firefox for Android anymore.
about:config prefs are not "broken," but many of them work much differently in GeckoView than they work in desktop.
Setting some prefs to the wrong value could completely disconnect Gecko from the embedding app.