I’ve been looking for a replacement for the awesome Aardvark Firefox extension ever since I made the switch to Firefox 1.5 that doesn’t support it yet. This looks like a nice bookmarklet to hold me over 
You can even configure it just the way you like it. That is pure class…like a monkey in a tuxedo 
slayeroffice | tools | Mouseover DOM Inspector v2.0 Help
The Mouseover DOM Inspector, or MODI for short, is a favelet (also known as a bookmarklet) that allows you to view and manipulate the DOM of a web page simply by mousing around the document.
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To begin using the Mouseover DOM Inpsector, simply add the following link to your bookmarks by right clicking and selecting “Add to Favorites” or “Bookmark this Link” or whatever the nomanclature of your browser of choice.
(via Ajaxian)
