There’s a reason that Google Chrome is the most popular web browser in the world. First introduced to the market in 2008, Chrome’s global market share is nearly 60% and climbing. One of the factors that make Chrome so popular is the ability to add ‘extensions’ to the browser. Primarily developed to enhance user experience through improved functionality or additional features, extensions are small applications that can be added to the browser's tool bar. To continuously create extensions that keep up with the needs of users, Chrome is “free and open source” software. Open source means that Google releases the browser’s source code to developers who are free to use it to develop extensions.