I'm having an issue that's causing quite a few problems for me. It seems that Firefox is not color managing any images - and by that I mean, it is outright di… (閱讀更多)
I'm having an issue that's causing quite a few problems for me. It seems that Firefox is not color managing any images - and by that I mean, it is outright discarding the profiles/failing conversion, unless the image in question is tagged with the same color profile that my monitor is presently using.
My monitor is calibrated with an i1 Display Pro, and consequently the monitor/OS is set to use a custom color profile. We'll call this myprofile.icm. Now, this profile serves me well in almost any other application - Photoshop, where myprofile.icm is the working space for RGB images, no issues. In Firefox however, any images that are not saved with myprofile.icm embedded wind up displaying as if there is no color management on them at all.
For example, let's say I've worked on a painting in my custom profile, and prior to saving it as a .png for the web I convert it to sRGB and save it with the sRGB profile embedded. This does not cause significant change, and the new .png will display properly in Photoshop whether I open it and use the embedded sRGB profile, or reconvert it to the working space. This same .png will also display properly in Window's photo gallery and other browsers. As soon as I open the image in Firefox, however, the image is displayed as if the color profile is completely thrown out the window (I can replicate this view of the image by opening the image in Photoshop, and choosing to discard the embedded profile, and not color manage the file at all). Any sRGB image, or untagged image, is displaying in Firefox as if it is not color managed at all. Be it a .png, .jpg, my own image - or anyone else's. The only images that display properly are images with myprofile.icm embedded.
I've messed around with my about:config options, but they present sit as follows:
gfx.color_management.display_profile [blank] (this is the default)
gfx.color_management.mode 2 (this is the default)
gfx.color_management.rendering_intent 0 (this is the default)
I've tried setting gfx.color_management.display_profile to point to the very specific .icm profile that my system is currently using, restarted Firefox, no difference. I tried setting gfx.color_management.mode to 1, as well as 0, and neither of these fixed my issue. I also tried changing gfx.color_management.rendering_intent to -1 for curiosity's sake, and this also did not resolve the problem.
The fact that any sRGB tagged, or untagged images are displaying identically to if I open them in photoshop and intentionally discard color profiles, and don't color manage the image, is concerning.
Now, my fairly non-technical understanding of Firefox's color management solution is that it supports embedded profiles, but should also effectively convert the color information to your monitor's in-use profile for accurate color representation. What appears to be happening is that any time this conversion actually takes place, it fails, and discards the information entirely. This may be why images already tagged with my monitor profile work without issue? I am uncertain.
Any information or additional assistance regarding this would be awesome, because it's a fairly significant issue for me.