Autohide Using the Toggle Button
You can automatically hide browser frames by clicking on the button, located in the top right corner of the frame.
To turn off the autohide for a particular set of windows within a frame, click on the button.
Use Automatically Hidden Windows
When you automatically hide a set of windows in a frame, the tabs contract to the outside of the application workspace.
Hover the cursor over a window symbol to expand both the tab and the associated window.
You can also use the View | Visual Style | Animate Autohide Windows menu option to animate windows that have been automatically hidden.