I haven't noticed, but I admit my Firefox setup has been subtly broken for a decade (by choice). In any case, you can always unconform where it matters for you, but why not start from sane defaults?
It still prompts you to install an update when one is available. In Firefox you still have to accept a prompt about restarting the browser after that, so it doesn't make a whole lot of difference.
But fair point about "extreme" vs "sane". They're quite subjective terms.
