This extension isn't yet perfect, but it makes the Twitch viewing experience FAR better and much more enjoyable! Updates are thoughtful and are made on a regular basis. This is probably just a 4 star extension, but I DON'T HESITATE to give it 5 STARS because there is simply nothing else like it - no other extension competes with "Preview's" tremendous set of features or it's developers commitment to constant improvement. If only Twitch cared as much for their viewers as this developer does!

this add-on is so good!
but, i can't comments on the youtube stream.

awesome