Its gives me an idea on how invasive a website is, and explains why. It doesn't say what it means, but to me, to be en guard regarding personal information you may be asked about when you are there.

I've been using this extension on Chrome for a long time, and love it. So when I checked and discovered that it is available for Firefox, I installed it immediately, and am just as happy with it as I am with Chrome. And honestly, I am getting to the point where I like Firefox better than Chrome! Kinda tired of all the glitches and every update has weird changes that no-one likes, and the mobile version of gmail sucks these days! So goodbye Chrome, hello Firefox :)

Perfect