Set gfx.color_management.mode to 1 to enable colormanagement. The parameter changes to bold text which indicates that it is now user-defined.
Below are all parameters which can be altered:
gfx.color_management.display_profile
The Full Path to you monitor’s color profile. For example: C:\colorprofiles\HP Z27x\HP Z27x sRGB D65 ICC Profile.icm
gfx.color_management.enablev4
Set to true (doubleclick the entry) to enable colormanagement v4 (Recommended).
gfx.color_management.mode
0 – Disable color management.
1 – Enable color management for all rendered graphics. (Recommended)
2 – Enable color management only for tagged images only. (Default)
gfx.color_management.rendering_intent
-1 Honor the rendering intent specified in the image file.
0 Perceptual (Default) (Recomended)
1 Relative colorimetric
2 Saturation
3 Absolute colorimetric
To finaly enable color management you have to restart firefox.
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This map does not depict actual data. Instead, it has been carefully designed to be a diagnostic tool for evaluating the robustness of individual color schemes. Full use of this tool will benefit your map designs because colors (even very similar colors) are easy to differentiate when they appear in a nicely ordered sequence (such as a legend). The task of differentiating the colors, however, becomes much harder when the patterns on the map are complex, such as in the lower left corner of the diagnostic map.
F. Arfia, A. Sabri, M. Messaoud, and M. Abid. International Journal of Computer Science, Engineering and Information Technology (IJCSEIT)2 (2):
01-09(April 2012)