Firebug is a Firefox plugin that lets you see how any website works, well built, it inspects the source code of any website and allows live changes to any website this is done locally on your computer so when you refresh the web page the changes you made revert back to the original. I use this helpfull plugin to learn more about how websites are constructed and when I want to edit my own pages on my website. So I have and will be using this to help myself with the pro project.
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