I'm not sure if Google used leverage or some kind of weirding way but Mozilla foundation's activities since 2008 or so tie in nicely with Google's priorities.
According to the Wikipedia page on Mozilla, Google gives Mozilla money considerably beyond search royalties ($5M in 2006 for example).
Every Chrome user is presumably someone using Google for search whom Google doesn't need to pay. (I doubt that makes Chrome profitable though.) I think Chrome and Android only make sense as defensive measures against Microsoft/Mozilla and Apple respectively.
According to the Wikipedia page on Mozilla, Google gives Mozilla money considerably beyond search royalties ($5M in 2006 for example).
Every Chrome user is presumably someone using Google for search whom Google doesn't need to pay. (I doubt that makes Chrome profitable though.) I think Chrome and Android only make sense as defensive measures against Microsoft/Mozilla and Apple respectively.