Must-have Add-on Rated 5 out of 5 stars

I use it all the time without thinking about it, but I really notice if I have to use a browser without it. It may only save a few seconds each time, but it saves a lot of time during the day. More importantly, it lets me move up and down a website's folder structure without have to interrupt my train of thought. Great add-on, and I wasn't going to move to Firefox 4 until I knew it would work there.

This review is for a previous version of the add-on (4.2.1.1-signed).