Rated 4 out of 5 stars

Basically required for anybody working with the firefox UI. Interface seems a bit half-baked sometimes, but it works well enough.

Should have a keyboard shortcut though, because some elements of the UI (most notably the alert popup for saving passwords, viewing identity etc) disappear when they lose focus so it's impossible to select them.
A kind of workaround is to navigate via arrow keys and tab, but that goes against the simple point-and-click functionality..

Also, minor nitpick, but the icon doesn't show up well on dark backgrounds.

Eliminates need to load chrome file Rated 5 out of 5 stars

Totally Awesome.
Eliminates the need to have to figure out which part of chrome:// to load, to be able to 'select' element in normal DOMi...
This causes chrome to load instead of url of page being viewed.
Use with https://addons.mozilla.org/en-US/firefox/addon/element-inspector/

Rated 5 out of 5 stars

Amazingly useful for add-on development. Saves me a huge amount of time compared to bringing up the DOM inspector and searching for an item.

Convenient developer tool! Rated 5 out of 5 stars

I love this add-on. It's unbelievably convenient in its functionality working with DOM Inspector to reveal elements of a web page or browser UI. If you're writing userscripts, userstyles, or addons, you'll love this tool. Please keep up the excellent work.

This review is for a previous version of the add-on (4.03.20120929).