Google isn't being "lovvy dovey" with Mozilla. They are paying for traffic. They pay for traffic from other browsers and from iOS as well. Do you think Google has a loving relationship with Apple? I sure don't.

It's a fine relationship for both sides that simply doesn't require love, or even very much like. That being said, there's a lot to like about a relationship that's been such a win-win for Mozilla and Google for nearly a decade. How many other business relationships between major Web players have done so well for so long?