The falling-out panels in the full screen mode

[ChromiumIQ]

In firefox in the full screen mode there is an interesting function. When leading the cursor to the upper part of the screen the panel of tabs and a toolbar fall out. There is no panel of tabs. Very convenient function. At the user before eyes all page, all necessary tools appear when they are necessary to him. 
Whether it is possible to make also in Cent? It is only necessary to add still a panel of tabs.
Whether it is also possible to make concealment of a side bar of tabs in case of cursor movement out of panel limits? By analogy with the main panel of tabs.