In a way that I am not sure whether Chrome success (which is undeniable) happened because of its technology merits or its UX. It is hard for me to decide because significant part of UX interaction is supplied by extensions, for which I am not sure where they go. But I am OK with putting Chrome into the column of "good UX". I still feel it's rather exception than a rule.
Chrome was the first browser to pare down the browser chrome: svelte tabs, no title bar and even small touches like not immediately resize the tabs soon after closing one so you could rapidly click on 'x' N times and close N tabs without moving your mouse. Chrome did not just have good UX, it had excellent UX that set trends that inspired changes to Firefox[1] and IE.
