This is exactly the sort of thing one might expect an extension to be able to to, but since the move to web-extensions many of these things aren't possible.
For example, you can't change user settings from an extension. Or install other extensions.
For example, you can't change user settings from an extension. Or install other extensions.
It's means people have one less reason for sticking with firefox and means more people will stick with what comes with the OS / what google advertises everywhere / what works better with their favorite websites.