Firefox disables color management by default. This means it won’t honor a color profile embedded in a digital image - which annoys photographers who post pictures online to no end.

Here’s how to fix it; in Firefox’s addressbar, type in: about:config

Then search/scroll the list of options till you see the following option:

gfx.color_management.enabled         user set        boolean      false

Double click on it to toggle its state to true then restart Firefox ;)

There you have it OSX users, no more reason to stick with Safari for the sole purpose of “proper color management”