User-Agent is a free tool that allows you to set a custom user agent for a page. It is very easy to use, and can be used on both mobile and desktop pages. This is great if you want to load certain webpages faster or if you develop webpages yourself.

You can choose between two options: mobile or desktop. The extension is very easy to use. You just need to enter the URL, and the app will choose the best user agent for it. You will be able to enter a domain, a wildcard, a keyword, or a regex (Regex expression).