How to Change the User-Agent for Firefox

There are a whole bunch of reasons you may want to trick a web site into thinking you’re using a browser other than Firefox. Maybe you’re a web developer and need to see what a site looks like in another browser. Maybe a site only allows certain browsers and you don’t have access to them. Whatever your reason, this guide will show you how to use the User-Agent Switcher and Manager add-on for Firefox so that you change the user-agent that Firefox uses to identify itself to a different one. …