Try to update to the latest Firefox 12.0 version.

You can find the latest Firefox release in all languages and for all Operating Systems here:

• Firefox 12.0.x: http://www.mozilla.org/en-US/firefox/all.html

See:

• http://kb.mozillazine.org/gfx.color_management.mode

• https://developer.mozilla.org/En/ICC_color_correction_in_Firefox

Caveats: The new QCMS color management system introduced in Firefox 3.5 currently only supports ICC version 2 color profiles, not version 4.

You can set the gfx.color_management.enablev4 pref to true on the about:config page and close and restart Firefox to enable ICC V4 support in Firefox 8+, but that feature is not yet fully implemented, so there may be problems in some cases.

Test page:

• http://www.color.org/version4html.xalter - Is your system ICC Version 4 ready?

That still doesn't fix anything for me.  :( I don't know what I'm doing wrong. Only thing I can add is I'm running dual monitors. Last one was on an ATI card dvi/vga and this one is vga/hdmi and Intel integrated graphics. I have both monitors set to the single calibrated profile, and yes the box to use the profile is ticked.

I've tried v4 on, off, gfxmode to 1 and 2... telling it where to find the icc profile, leaving it blank.. I'm reloading FF after every change, and nothing I do changes the results I get from the test page at color.org or any other. This is going to drive me crazy for weeks I fear and it'll end up being something silly..

You may have to disable hardware acceleration to make Firefox work properly with two monitors.

• Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

Also I'm not sure if Firefox is able to handle separate color profiles for multiple monitors.