Rated 3 out of 5 stars

"View Selection Source" on steroids, but not much more. Primary feature is "auto select" which is a clone of firebug's Inspect Element. No XPath or CSS expression is generated, the element is simply displayed by itself in a new tab without the surrounding context of the HTML tab's display. A filtered list of a page's elements can be generated from an XPath or CSS selector expression instead, but once you have the results of filtering all you can do is highlight them, jump to a single element in Firebug's HTML inspector tab, or send a single element (and only a single element)'s HTML source to the developer's favourite pastebin. Those looking for a tool for use in XPath development will find this tool only minimally useful. It does have a simple, clean interface and the ability to operate on CSS selectors, but otherwise compares unfavourably with the other firebug xpath add-on, FireXPath.

This review is for a previous version of the add-on (1.01.1-signed.1-signed).