User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:47.0) Gecko/20100101 Firefox/47.0 Build ID: 20160127030236 Steps to reproduce: Hit F11 key to go into fullscreen mode on any page. Move the mouse to the top of the page to bring up Firefox's chrome Actual results: On the far right of the tabs will be the ugly things attached to this post instead of something that make sense. Expected results: Given that ever since Australis happened, the fullscreen chrome has been pixel-height the same as the non-fullscreen chrome, those buttons don't make sense anymore. Not only are they extremely annoying to click on with 1080p+ monitors, they're ugly as sin. I'm proposing to change them to match the Window Command icons of the non-fullscreen chrome if possible, and if not at the very least to the default Windows 10 Window Command icons, as they fit the overall aesthetic of Firefox Australis better even on non-Windows 10 OSes (including Linux DE's like Gnome or KDE)