useful for more that WebDev Rated 5 out of 5 stars
This is a handy little add-on, and although the methods can also be accessed via a bookmarklet and/or Greasemonkey, it is useful enough for it to be given a place as an extension.
It can be used on any webpage that has links embedded in the code, including files that are localised to your personal hard-drive.
Yous can use it on internet archives' old file holdings to check if the next level of links from that page are also in it. It can be used to check websites that are your responsibility to maintain for dead links. When you run across a page of links that you have an interest in following, it can tell you which are dead ends before you traverse to them. there are many other instances where this comes in handy.
It is a good extension, which has never acted badly the whole time I have used it, and it was among the first extensions I tried.
The detailed review for this plug-in by thnidu on February 13, 2008, also deserves 5 Stars. I was not aware that the list could be acquired through the console.