Like Firebug, Internet Explorer also contains a developer toolbar, which is used for debugging and editing HTML, CSS, and JavaScript code for a web page. The IE developer toolbar comes built-in with Internet Explorer 8. In previous versions, it can be used as an add-on to Internet Explorer. If you're using Internet Explorer 7 or below, the IE developer toolbar can be downloaded from the Microsoft website, using the URL http://www.microsoft.com/downloads/en/details.aspx?familyid=95E06CBE-4940-4218-B75D-B8856FCED535&displaylang=en. But, in this topic, we will be discussing the IE developer toolbar available in Internet Explorer 8.
Tip
You can always use Firebug Lite in any browser except Firefox. Here are the instructions about how Firebug Lite can be used in any browser: http://getfirebug.com/firebuglite.