How to Install Wordpress Plugins on Localhost After installing WordPress itself the first thing tutorials want you to know how to do and what most beginners want to know how to do is how to install a plugin. Plugins give you the ability to easily add new features to your site such as a slideshow, gallery, and many other tools for you to improve with. There are thousands of free and paid plugins available and in this video, we will show you how to install a WordPress plugin.