if the information helps any, I see the icons correctly in my FireFox. I started with 0.8.7 and installed 0.9 on top of it.
I never put the icons on the toolbar, although I do remember seeing the icons in the customize dialog at one point (and they must've been ok - I would've noticed if they were that badly messed up).
Haven't tried another profile or such - I presume I'd get the same results as everyone else sees on a new install...
- Al -