Both Firefox and Chrome should together cover most needs. I find that Firefox has a problem loading pages with a lot of content (even a lot of text) and chrome occasionally hangs or “gets stuck”, but both browsers are pretty good. I’m a little disturbed by Google’s attitude toward privacy and ad-blockers, so even though their browser is fast, I tend to use Firefox more often. There are definitely sites that function better using Chrome though, so you should have both. There in’t a limit to the number of browsers you can have on your computer; I just wish some of the many third party ones (seriously, take a look online sometime, there are literally dozens of web browsers out there) worked a little better with screen-readers. Sadly, work mostly seems to only be done on the major competitors.