I'm not sure why others are saying FireFox is terrible, I use it exclusively on my desktop, laptop, tablet and phone. I've never understood the attraction to Chrome, I have it on my computer but never use it. It's well known that Chrome is a giant tracking cookie for Google.
IMO, Edge might be a decent browser in the future but, at the time being, it's not really as complete as other browsers that it is competing against. It's especially lacking in the extensions department. Extensions in Edge have only been supported since the Anniversary Update that came out in August of last year and there are only a handful of extensions available.