I'm a Google fanboy, but I'm not sure if I want them to have a majority in the web browser space.

While they do move faster than MS, they also seem to have an habit of working on something internally, then one day they announce the feature in Chrome, dump a library to the other browsers and expect them to just integrate it. And since they control the biggest websites, there's immediately an unfair pressure; "Oh, you don't want to use SPDY? Well, then your browser will be slower on Google sites than Chrome" (they don't say - or probably even think - that, of course, but it's true)

Mozilla talks a lot about their development and seems to be more interested in a better web, and not just a better browser.