Rated 1 out of 5 stars
I found it blocking certain images on amazon.com. The images were coming from images-amazon.com. Temporarily allowing all requests resolved the issue. So, RP must be blocking something that would show in the list of "Blocked destinations", right? Wrong.
Why wouldn't it? Because it's not smart enough. I had to dig to find out what was going on, and create a rule with origin ssl-images-amazon.com and destination images-amazon.com. This was the first and only site I've visited since installing this extension, because apparently privacy and security is supposed to become a full-time hobby.
I recommend installing it along with NoScript so you can stop wasting time enjoying the internet, and devote 13 hours a day instead to configuring Firefox extensions.