Browser Extensions
or, superpowers for your browser
Browser extensions let you add new features to your browser — literally extending your browser.
This means that you can customize your browser with the features that are most important to you. Think of extensions as ways of adding new superpowers to what the browser can already do. For more information see link below along with a link for a demo by Steve Dotto from Dottotech.com
20 Things I learned about browser-extensions