Excellent job Rated 5 out of 5 stars
I like a lot the option to hide the menu bar and have it in the orange button "firefox"
I also like it's clear look and all the option i have to customize it's appearance.
The only con for me is that in the edit option in the "firefox" menu there is option for "undo".
Everytime i want to press "undo" i have to make the old menu bar visible.
Great work my friend :)