http://chinese.engadget.com/2011/11/07/firefox-8-is-coming/in the long run, chrome definitely has advantages over firefox, chrome is backed by google, which provides chrome with unlimited resources from google indexing and this power is incomparable. All the google services you will have the best experiences on chrome than other browsers, that makes chrome so unique.
firefox can make tricky features, but when it comes to service, it can't beat chrome, unless it has better alternative like, facebook.
like i said, it's not only about the browser, it's all about integration.