Parents - you need to try this. Rated 5 out of 5 stars

It does exactly what it claims. I don't chase through pages of comments, so I have had no detectable performance issues. Any household where children have access to YouTube will probably find this add-on a blessing. My experience with it is fast leading me to the conclusion that it would be small loss if all YouTube comments went away. I recommend keeping the misspelling filter at 2 or lower, but then, I truly am a snob.

This review is for a previous version of the add-on (1.3).