once the Google money dries up Mozilla will, sadly, disappear like a punctured balloon

I suspect Google will still feed money into Mozilla. Any monies that go that way are not widely broadcast even though the evidence is all over FF. Google need the appearance of competition to avoid the Micro$oft mistake of being a virtual monopoly. And doesn't Chrome have a Mozilla engine under the bonnet? Or did I mean hood?

Chrome is deliberately simple for speed, FF is feature rich.
Different strokes for different folks. eg Just listen to a Mac user (or did I mean evangelist?).