Having a look this.
Will document where possible.

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Enable Advanced Color Profile Support

Firefox has this advanced color profile features that display higher image quality. It is not enabled by default as it has a negative effect on the performance of the browser. If you are concern with the image quality rather than the performance, you can activated it via the gfx.color_management.enabled setting

Config name: gfx.color_management.enabled
Default: False
Modified value: True (if you want to activate the color profile support feature)

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1. I find that with color management enabled, when you close a tab it takes ages to disappear.

May delete this post if I find this setting of no use.

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1. link
2. link
3.link

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There is an extension called Color Management

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Question on AMO to developer

Just curious
by ZeHawk on September 5, 2008
Do you do anything special other than set gfx.color_management.enabled?

Developer Reply: not yet
Reply by Sean Hayes on October 6, 2008
Not currently, but I hope to add some new features when I get a chance.

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