Perhaps it wasn't the best example, as the Tab/Window title could fall under Window management. But fine, if you just want minimal chrome, perhaps Chrome will do. Parent said feature-rich. My point really is that there are technical and usability features. And while of course there is cross over - I don't see much in the way of advancement in usability (without extensions). Browser's haven't changed that much in the last ten years - from an end users perspective. Window and web page management isn't great.