To the developer. Rated 5 out of 5 stars

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.

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