These are the top ten rated internet browsers. here's the link
Now, don't go off saying this is totally wrong and such. It has evidence! Now, I don't completely agree with this, but, you should see it before we make the umpteenth thread debating which internet browser is the best! Now, don't go saying that mozzila firefox sucks and stuff like that, because here's another website that rated it the best: here
I use Chrome, basically it's speedy and simple. And incognito is great.
Though Firefox is great, I'd put them almost equal speed-wise, and Firefox has private browsing too. Firefox does have a vast library of extensions, but Chrome can still hold its own. It just comes down to which browser is installed is the one I use.
Although usually I pick Chrome since Firefox is a huge memory hog (Chrome isn't so great for that either...)