Rated 5 out of 5 stars

The best add-on available for troubleshooting website issues. I used it all the time when I'm debugging browser issues or debugging web page issues. I don't know what I'd do without it. And, yes, I've donated! It is worth giving a few bucks to keep this one up and running.

This review is for a previous version of the add-on (1.1.9).