Rated 5 out of 5 stars

DOMi has some bugs right now, but I'm giving it 5 stars on credit. If you write HTML, you owe DOM Inspector a debt of gratitude whether you've benefited directly from DOMi or not. Back when Firefox was just "Mozilla" or "Phoenix," DOMi was built-in and I believe it was the first of its kind. The HTML/CSS/javascript debugging it provided were revolutionary, and critical to bringing web development out of the 90s. This increased visibility made understanding all but automatic, and allowed everyone to raise their expectations. Web development used to include a lot of trial-and-error, and now you only have to resort to that when you want to, or when someone makes you try and support IE.

This review is for a previous version of the add-on (2.0.4).