How can I see included JavaScript sources?

I am trying to script a web page using GreaseMonkey. (I am using Firebug for help in development.) The page has a small amount of JavaScript code, but that code pulls in other JS files from the site开发者_如何转开发. Are the entire collection of JS files stored somewhere on the client side (i.e. on the filesystem somewhere) so that I can view them? Or better yet, is there a way I can view them in Firebug? I am a little overwhelmed by Firebug but will be able to follow instructions.

Click the script tab in Firebug. Then look immediately below the tab for a dropdown that shows all the scripts.

right click - view source