I can't imagine that declining revenues would hurt Chrome. There are lots of other ways for Google to cut costs before limiting their investment in the browser.

I can't imagine that declining revenues would hurt Chrome. There are lots of other ways for Google to cut costs before limiting their investment in the browser. And Mozilla has always been happy to ride the coat tails of Google Search. Declining AdWords revenue just means declining Mozilla revenue. Even if the two aren't partnering together going forward, Google helped Mozilla negotiate a high bid with Yahoo. Long term, I think Mozilla wants to see Firefox OS compete with Android. There's a lot more revenue potential there and the best chance to rapidly grow their user base.