Browsers play a very important supporting role in Google's business, and the company has been investing aggressively in Chrome technology and marketing. The browser is geared to improve online services such as search, video, and Google Apps, all of which generate revenue for the company.
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Chrome has an advantage for Google over Mozilla's Firefox: searches from Chrome are performed directly with Google technology. That means that Google doesn't have to split the revenue with partners such as Mozilla or Ask.com that drive search traffic. With such deals, the search-ad revenue Google pays partners is called traffic acquisition costs, or TAC.
UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:7.0.1) Gecko/20100101 Firefox/7.0.1

