The Beta version was working pretty well, but the add-on is extremely awkward and very poorly done. It is a waste of time and resources. The programmers have totally lost sight of the original purpose as well as it is intrusive with cookie setting limited to "do not sell my information". This does not prevent them from creating the cookies in the first place. This add-on has done a lot to shake my confidence in Firefox. If they are wise they will revamp the program or remove it all together.