If I could say 1 thing... make the roo@localhost a bit smaller so it fits at the very top slim kinda and make the lettering of the rest of firefox not green but maybe Grey?

el tema es ingenioso pero no puedo verlo en mi navegador, la imagen esta muy abajo y por lo que no se logra apreciar

This would definitely be 5 stars if I could see the whole thing but with just the Menu, Navigation and Bookmarks toolbars, about half of the text is cut off. Otherwise, it's sweet!

I love it!