Clicking on a link with the scroll wheel (or middle button) of your mouse will open the link in a new tab in both Firefox and Internet Explorer 7. In the same browsers, a click of the scroll wheel (or middle mouse button) on any tab, will close that tab. For more short cuts, try these reference pages for Internet Explorer and Firefox .
Cite This Page
Feldman, Barbara. "Scroll Wheel Clicking." Surfnetkids. Feldman Publishing. 19 Dec. 2006. Web. 30 Nov. 2014. <http://www.surfnetkids.com/tech/734/scroll-wheel-clicking/ >.