Essential Add-On Rated 5 out of 5 stars

I've gotten so used to Ad Block over the years, I don't even think of it as anything but an integral part of Firefox.

The subscription list catches virtually everything I don't want to see, and little, if any, that I do.

I also find it invaluable in blocking things such as the Facebook 'Like" scripts that many consider privacy invasive.

This review is for a previous version of the add-on (1.2.1).