Earlier quoted context omitted.
Yeah I hate that they burried the option to disable JS and even worse to disable JS moving and resizing a window around the screen. At least make those things the end-user is asked for permission to allow.
For those who haven't seen it: https://www.technorms.com/assets/sshot-624.png I hate the dumbing-down of browser configuration (and UIs in general) too, but given the actual people who make the decisions on what browsers do, it's not surprising --- turning the userbase into obedient ad-clicking dummies (and preventing them from learning about e.g. the world of disabled JS) is the best way to monetise them, after all.
I think they can dumb it down if they want.... BUT have an 'advanced' button for people who know what they're doing. I wonder how simple of a plugin it could be to make a 'Firefox Config Plus' if one doesn't already exist...