It seems that even in Firefox 3.6 one needs to TURN ON color management? Is this correct? It seems that I have done so, with the help of an add on

Just to make sure that all is well, I visited
http://www.color.org/version4html.xalter
It would appear that I am not ICC V4 complaint? [All is well for V2 however] Where is the glitch here? [OR is there a glitch?]
I would really appreciate some expert advice on this matter. BTW FF comes out better than Chrome in the displaying the images.
Thanks.