I'm not a colour expert but as I understand it ICC profiles allow you to configure the colours your monitor renders to match their intended colour. I know that I need to use one of these profiles in order to get my VA panel monitor (which tends to use over-vibrant colours) to render "normal" colours. I'm not entirely sure why Windows cannot override application rendering etc. but I do know that applications that do their own rendering need reference to this profile.
Prior to Firefox 3.5 this was all supported without issue. As of 3.5 Firefox revoked support for ICC v4 (offering only ICC v2 support). As a result all colours look darker and I can rarely see gradients etc. now which is problematic as I prefer to use FF + Firebug for web development.
Prior to Firefox 3.5 this was all supported without issue. As of 3.5 Firefox revoked support for ICC v4 (offering only ICC v2 support). As a result all colours look darker and I can rarely see gradients etc. now which is problematic as I prefer to use FF + Firebug for web development.