Hello,
You may control your browser and many others may do so too, i do myself. But there is a vast majority that haven't got a clue! Some would say that a browser is a cow, sheep or a goat, there all browsers!! Ask most people what there favourite browser is and there answer would be a Giraffe or an Elephant. There is a huge number of people that have no idea at all whatsoever that they use a browser to access the internet. They usually reply, i use google, i use yahoo and so on.
What's internet explorer, never heard of it, Firefox! what's that and so on.
There are many people that rely on these features Top sites and highlights that is and have no idea how to bookmark or add a site to a list of favourites and if they did most haven't got a clue where to find them afterwards.
This doesn't just apply to Firefox, it also applies to other browsers too.