FF 17 & Graphite 15 -- Wow! Rated 4 out of 5 stars

Brilliant! This seriously improves the 'image' of Firefox (as previous versions did) on the Win & Mac platform. I guess my only issue is on my Mac, the outlines don't show when the cursor hovers over the main controls (Home/Reload/Back/Forward). Curious. Still looks refined though!! I have to completely agree with MadChuckle below.