The funny thing is that I don't use any of the buttons in the browser. I use the URL bar to tell the browser what to show me. Cmd-T for new tap, then Cmd-opt-arrows to view the various things I've asked the browser to show me. Cmd-R for a refresh. Don't need a button for that. Multi-finger swipes for back/forward. My home is set to a blank page, so it's a useless button for me. Seems to me like a simple UI could be had. Got no opions on mobile. Don't use it enough to know what that experience is like. No get off my lawn!!