The Close tabs menu allows the user to close all open tabs in a click. To expand the Close tabs menu, click the Close icon displayed at the end of the tabs bar in the upper-right corner of the window.
If multiple tabs are open, click the Close all Tabs option.
Figure: Close all Tabs
If multiple tabs are open and you want to close tabs except the active tab, click the Close all but Active tab option.
Figure: Close all but Active Tab