Tony Patton in his article on Chickenfoot speaks about manipulating the DOM of a webpage through which you can give additional features to a web page.
Chickenfoot is a Firefox add-on that allows you to automate user actions within the browser environment. It also lets you extend the browser interface to provide additional features to a Web page.
Before I delve into how this add-on can make your Web development work easier, I thought I’d take a moment to share the answer to the question I bet you’re asking yourself (I know I was): Why is it called Chickenfoot? Here is the answer from the Chickenfoot site:
“Chickenfoot is a game that you can play with dominoes. Since Chickenfoot does much of its work by manipulating the Document Object Model, or DOM, of a web page, Chickenfoot the Firefox extension is like a toy that lets you play with the DOMinoes of the web.”
Access the full article here
Chickenfoot is available as a free download. When you click the downloaded file, Chickenfoot is installed via the Firefox Add-ons dialog box. After installation, it is available as a sidebar selection (View | Sidebar). After you enable the sidebar, Chickenfoot appears on the left side of the browser adjacent to where pages load.
For more information about Chickenfoot scripts, check out the Chickenfoot Script Repository.