It’s quite strange that Safari Browser does render images in a different way from others browsers. I mean: the same .jpg with a black color inside for example, in firefox is shown in the right way, in safari the “black” become a “dark gray”…
safari snapshot
the same in firefox
Well, after a while and many trials I discoverd that the problem is generated by the “profile colors” embedded into jpg saved from photoshop.
You need to save the file again removing the color profiles option:
