The "Close Tab" extension provides a stationary button that closes the currently selected tab. This saves time visually hunting down the active tab and provides consistency for the user. Very simple. *Note: You can also press Ctrl + W to close tabs (when keyboard input isn't being captured by a plugin). *Note: If the icon gets hidden by Chrome, you can get your icons back by shrinking the address bar down to a smaller size with the mouse. It happens sometimes. :) *Added: Protect pinned tabs (Options Screen) P.S. Have you found a bug? Email address is provided in the options screen. Happy Chroming.