I'm not sure if its because of how browsers use the tabs with the menu bar? But when I group IE/Chrome/Firefox I notice that the minimize/max/close icons are offset down. This is most prominent when in fullscreen mode
This leaves
1) The Ui is iconsistent if you have applications that put those in the upper right
2) It leave a 'square' in the upper right when using the browser that isn't clickable. It looks like you can click directly into the destop in that tiny square
Is it possible to upload screenshots?