As of Yesterday, Google released the long awaited 64-bit version of Chrome for Mac. Running this browser right now and I like it in comparison to FF. This project has been in development for roughly over 5 years: https://code.google.com/p/chromium/issues/detail?id=18323
Article: http://www.digitaltrends.com/computing/chrome-browser-updated-with-64-bit-mac-os-x-support/