Rated 4 out of 5 stars

Opera's Windows 8 native UI is the best UI I've ever seen... After many years it made me set Opera as default again! Zero ugly curved, incosistent corners and simple as hell...

I had hopes for Fx when I saw this theme, but something is off. It seems messy... as all Fx themes, unfortunately. Many curved corners and unnecessarily you removed the windows' native highlighting on bookmarks bar etc. The reason I gave 4 starts. Thank you, anyway!

This review is for a previous version of the add-on (23.2).