However, it is faster to activate, thus it starts quicker, and apps also open as soon as you click on them. Microsoft Edge is less customizable than IE, therefore you have minimum control over how you use it. With this browser, users can add extensions. It is a modern web browser to replace Internet Explorer, its predecessor. They can also save favourites, and use online apps. Microsoft Edge refers to a Chromium-based free web browser that enables users to surf the internet.