I get why people were concerned about it, but honestly, it's not a bad idea for a normie browser. Extensions have always been a malware minefield. Most browsers will already get in your way if you try to load a really sketchy page. This is just an extra layer of security.

I don't actually see them using this as trying to slip in browser-level censorship of wrongthink. It's too roundabout a way to do it, with too many ways it would fail, and not worth it for a browser as small as Firefox. Browser-level censorship would have to be a concerted effort from all the major browsers, and even then, it would still be the least likely way to do it. They've already successfully censored sites that ran counter to the mainstream, and they certainly didn't need to be this obtuse about it to accomplish it.

The browser having more control than the user is par for the course for a normie browser. It's necessary, really. We haven't come that far from the days of adware toolbars. If you want more control, or are a political dissident, you shouldn't be using Firefox to begin with.