The "Canary" version of Google Chrome now allows designers to view their pages under responsive emulation mode. Get the browser here: https://www.google.com/intl/en/chrome/browser/canary.html
So... responsive emulation mode means "too lazy to drag the window edge"? Nothing like encouraging only testing fixed sizes, instead of testing ALL sizes with a simple drag.
Chrome keeps getting better and better and they will continue to dominate with better tools for developers. You can't deny that they are the leader and intend to remain so with them currently holding 64.3% of the browser market share.
Where did you get THAT number? I think you have it backwards, highest I've seen is 46%, at least in desktop numbers... and realistically it's more like 35% thanks to double-counting. NOT that market share means jack **** when the pool size keeps changing... You know like the whole "there are less IE users since they have less share" LIE... in 2003 IE had 95%+ share, but that was against ~680 million users. Today IE has a rough average of 25% the market, but that market now measures at 2.8 billion users... Do the math, that's 646 million users in 2003 vs. 700 million users in 2014... So guess what, while 'losing' 70% share they GAINED 54 million users -- meaning they haven't lost JACK ****! Don't let people use 'share' to lie to you.