Thank you Andrei!
Btw I'm not sure I've understood everything.
This documents basically says that if you have an image with its proper profile (in my case everything was in srgb standard) an put it in flash, even if you see it correctly in the fla, when you export the movie to an html seen in a browser that supports icc profiles, you see it wrong. To remedy to this, is to write that code in the fla.
Is that correct?
I'm sorry but I can't use flash well enough yet.
Ok, now everything is clear.
I found some explanations about the issue. It seems that it concerns a system with OSX, Safari and a wide gamut monitor. Flash nullifies color tags in the pictures, Safari displays non-tagged pictures as they are monitor-profile tagged... and since the monitor profile is a wide gamut profile, voila, oversaturated colors.
In fact, trying to use Camino browser on the same system, everything works fine and the colors are perfect.
Now, to whom this issue should be addressed? Adobe or Apple?
Meanwhile I'll go browsing with Camino or setting the monitor in srgb mode for internet.
Yes, code should be written in Flash to attempt to remedy color issues.