I like the thought, but I can’t imagine that most people will enjoy getting even more popups when they load up a site, especially when they come from the browser itself.
Just take a look at OP here. If they responds this way to settings that are there for their actual benefit - just imagine how much they’ll like those popups.
How about, if you want a broken version of Firefox, you compile it yourself, rather than let everyone else suffer?
Like, the vast majority of browser users don’t even know what an extension is, let alone install one.