Customizable Shortcuts is a Firefox addo, can configure shortcuts for Firefox. After installing open the "Preferences" dialog and go to the "Shortcuts" section. To change a shortcut select a row, click on the "Edit" button (alternatively you can double-click on the right column) and enter your desired key combination.

Requirements:
* Firefox

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