Color management has always been a difficult topic, thank you to participate. I will try to be more precise.
A few softwares like Photoshop and Firefox (after enabling gfx.color_management.mode) are able to display the image accurately, converting from embedded profile to monitor profile if necessary. Other softwares don't convert, this is why it is recommanded to publish sRBG images on the web, as most monitors have a profile close to sRGB : no conversion is done but no conversion is needed, all is well.
The problem I am talking about occurs only on wide gamut monitors like my DELL 24008WFP, sRGB images can't be displayed properly without conversion. Example :http://www.alain-collet.com/Reunion/GRR2/111.html
This image is correctly displayed in Firefox on any monitor.
The pano is displayed correctly on a sRGB monitor but on a wide gamut monitor the sky is green.
The input panorama image is the same for both and embeds sRGB profile.