Close Tabs to the Right is a Firefox extension, it will enable you to close all the tabs located to the right of the one you are currently on.
Google Chrome and Chromium browser have the Close Tabs to the Right command on their tab context menu. This extension will add that command to the Firefoxs tab context menu.

Requirements:
* Firefox

The license of this software is Free, you can free download and free use this browser plug-ins software.