I haven't used a mac regularly since my Apple II plus in 1980. I have a new MB. It bothers me that in firefox or safari, a whole small segment of the top of the browser window has nothing but the colored buttons. Seems like a waste of vertical space when you are trying to get the most of a 13 inch screen. Is there some way to move those around or make them share a line with the address bar or something, like in can in Windows?