I love this tool and I am not sure why I haven’t written about it before. Instead of making changes to your site then refreshing to see the results, Firebug for Firefox allows you to make changes on the fly, in real time with the ability to see the results immediately - no more refresh button!!

I use this tool on my sites to edit, debug, and monitor changes to my HTML, CSS, and JavaScript. I definitely thing you should give it a try and make sure to check out the sweet tutorials on YouTube.

Click here for the Firebug information & download page.