Beyond open-sourceness it is also worth noting that while all browsers are behaving well on the internet right now (ever since Microsoft failed with the IE mono

Beyond open-sourceness it is also worth noting that while all browsers are behaving well on the internet right now (ever since Microsoft failed with the IE monopoly), Mozilla just does not have the permanent lingering need to make a profit, collect user information or to use their browser strategically in any way. Occasionally there are already Chrome-only websites, there is a Chrome web store that could potentially become a gatekeeper for software similar to what Apple is doing in the iOS ecosystem. I'm using Firefox even if that means that I don't get some cutting edge feature that I don't really need until a few weeks later. Hope that makes sense.