How YouTube should be Rated 5 out of 5 stars

This is simply how YouTube should be, you deserve more props than youtube engineers for doing this.. youtube is really outdated and apps like this shows it.
Can you please port this app for google chrome or this is exclusive for firefox? I can say that this app is what is making me stick with firefox, because chrome is faster for me but their youtube apps are not this good.

If you are not planning to do it, It really is impressive, this is what I searched for a long time. Thank you.

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