I think the line there is IF its rendered completely. Just a couple of test I did on pages I often go to. All tests done over wifi. Slashdot.org MicroB: 15 seconds to render entire page Fennec; 40 seconds Engadget.com MicroB: 18 seconds Fennec: 2+ minutes - I gave up. Add to that the fact that I can scroll the loaded content as it loads on Micro B and you have a far better experience with it over fennec. Also I havent had any issues with adblock on MicroB. Perhaps just lucky.