Gfx.color management.mode

Background

Color management allows images and colors to be displayed consistently across a variety of devices. Mozilla recognizes embedded ICC profiles in image files and uses a local color profile to perform the color adjustments. This preference determines if Mozilla should make these adjustments.

The extension Color Management sets this preference through a GUI.

Possible values and their effects

0

Disable color management.

1

Enable color management for rendered graphics.

2

Enable color management for tagged graphics only. (Default)

Note: These values apply to Firefox 3.5 and SeaMonkey 2. In previous versions, color management was disabled by default via the boolean preference gfx.color_management.enabled set to "false".

Caveats

• Without a properly calibrated monitor and a correct color profile, color management may actually make colors look worse.

First checked in

2007-07-23 by Stuart Parmenter (patch by T. Rowley) Changed to 0/1/2 values from a Boolean pref by bug 449681 (landed 2008-08-25)

Has an effect in

• Mozilla Firefox (trunk builds after 2007-07-23)
• SeaMonkey (trunk builds after 2007-07-23)

Related bugs

• Bug 16769 - Add cms (Color Management) support to Mozilla
• Bug 418538 - Enable color management support by default
• Bug 449681 - switch color_management pref from off/on bool to off/on/taggedonly int
• Bug 500079 - QCMS slows graphic handling, even on systems that can't use it

Related preferences

• gfx.color_management.display_profile

External links

• Safari ushes in better browser colors - page 2 (CNET News)
• Color management (Wikipedia)
• LittleCms
• Do you like the pretty? (Mike Beltzner’s blog)
• Firefox 3: Color profile support (oh the pretty, pretty colors) (Deb Richardson’s blog)
• Color Management (Firefox Add-ons)