View website source with external JS, CSS files

You can view the source code of the web page in every browser. But, most of the sites will use external CSS files for design, and external JS files for functionality. But, browsers will show the final page. If you want to look at those external files, you have to externally open each external file to view that.

Using JS View Firefox extension, you can do it the easy way. This extension will show all the files linked in the current page. Then you can open the required file by just clicking on that file name. Very useful extension if you are learning web designing.