Mouse gestures can be incorporated into Microsofts Internet Explorer 7 through an add-on. The program allows you to control the browser by making "gestures" with the mouse while holding the right click button down. For Example: Holding the right click button down and making a z type motion anywhere in the opened browser window will close that windo. This depending on your preferences may be easier than going up and clicking the X at the top right corner of the window. Also check out Opera help for information about mouse gestures for that browser.