TExtensions and applications make a device more powerful. If you want to make your Chromebook more potent with more features and functions, then the easiest way is adding apps and extensions to it. But to add anything to your Chromebook, you must be using the administrator account. If you’re using it as a guest or at work or school, then you can’t add any one of these without the permission of the administrator. If you’re already using the Chromebook with admin access, then here is how to add and remove extensions or apps on Chromebook.