Thirteen Firefox add-ons to arm Firebug

If you're a Web designer, Firebug, as a Firefox add-on, is probably one of the most useful tools for web front-end development. Especially nowadays, more and more javascript and ajax technologies are used in websites, and firebug provides great convenience for Web front-end development and debugging. Firebug has many advantages, including extensibility, and the following Firefox plug-ins are designed to arm Firebug, making it more feature-rich and convenient.