The Close tabs menu allows the user to close all open tabs in a click.
To view 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 all the other tabs than active tab, click the Close all but Active tab option.

Figure: Close all but Active Tab