I've been experiencing this problem recently that goes away itself or I have to restart the system in order to fix it. Whilst randomly browsing the net with firefox all the colours will go monged as shown in this picture -
I'm using a custom theme with TuneUp Utilities however when I used the theme on my old install, this problem never occured. Has this ever happened to anyone else and how did you fix it? This also affects the colours of the desktop icons and other windows components.

I'm using a custom theme with TuneUp Utilities however when I used the theme on my old install, this problem never occured. Has this ever happened to anyone else and how did you fix it? This also affects the colours of the desktop icons and other windows components.