Want to get Firebug working on your other browsers such as IE? Well there is a version of Firebug called Firebug Lite that will work with IE, Opera, Safari and Chrome.
Because Firefox is the only browser that has plugins you will need to insert this line of code into any page that you want to contain Firebug lite:
It won’t work on Mozilla, but the other major browsers are fine.
Another thing you can do – If you click HERE it will open a Firebug Lite window now! You can bookmark the link and add it to your IE favorites toolbar – that way you can bring up Firebug on any page.
Want to know where this info came from? http://getfirebug.com/lite.html