To the developer. Puntuado con 5 de 5 estrellas

Check this video, as it starts despite this add-on being installed!
"[E3 2012] Watch Dogs - E3 Gameplay Demo " at http://www.youtube.com/watch?v=xU7WGAJPRRw

Thanks to the developer for this great add-on.

Esta valoración es de una versión anterior del complemento (0.2.91). 

Sorry, but it works perfectly for me, except for this Firefox bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=776280
Please check if disabling and then re-enabling the add-on after a firefox restart fixes it