Rated 5 out of 5 stars
This add-on is the most important "feature" of firefox! I have been using this add-on for years and if you ever doubt its usefulness just try to manage a day or two without it. I do not even subject to the new "non-intrusive advertising".
You might also consider installing this add-on on all your family pcs - especially parents do require less support when they do not get confused by advertisements.
Thanks for such a high quality free add-on over all these years and some interesting blog posts Mr. Palant!