I've resurrected this thread because I've made an unpleasant discovery. So far as I'm concerned colour management in Firefox under Windows 7 is still way less than optimal. I posted this image in another thread:
Ignoring the blue border I see blocks of fully saturated blue colour intruding from left and right about halfway up the image and there is no graduated transition into the surrounding cloud. If I save a copy of the image to the Desktop by dragging it from the browser and then open it in IrfanView or PhotoShop I see what I originally created during post-processing. If you aren't seeing the problem I'm describing then I'm delighted for you but just so you can get a sense of what I'm banging on about here's a screen grab of a portion of the image with colour management enabled:
It's a fair call that I overdid the blue saturation in the original image
but that's no excuse for Firefox to make it worse. Disabling colour management in Firefox (about:config in the address bar and setting "gfx.color_management.mode" to value 0) solves the blocky artefacts but it also means that Firefox is unable to pick up and use any ICC profile embedded in an image as the test page Is your system ICC Version 4 ready?
clearly illustrates. Even with color management enabled in Firefox that test shows that Firefox is only ICC 2 capable.
Bizarrely, or perhaps not
, when I view the image above using Firefox 4 under OSX it displays just fine.
This is very disappointing. Firefox under Windows 7 has to be the gold standard for that browser and to find out that after the Firefox 3.5 debacle, which kicked off this thread initially, Mozilla still can't get the most basic image rendering as good as it should be when support for monitor profiles is enabled is a real kick in the gut so far as I'm concerned. It would be a major hassle for me, and I do mean major, to switch browsers and a switch to OSX for my workstation is not an option either because I'm heavily invested in Windows software. As things stand I either have to view images in Firefox with an unwanted colour shift (colour management disabled) or with less than good rendering when the going gets tough (colour management enabled).
I find the lesser of two evils is to turn off colour management in Firefox.
And Firefox 5 has just been released. Not only does it apparently not fix the issue above but by progressing to a new major version number for what essentially is just a bunch of bug fixes Mozilla have also created compatibility issues with some Add-Ons. And the only way to check if your Add-Ons are compatible would seem to be either to try installation of v5 and pray or manually go through each and every one and check the documentation. Aargh, it's time the Mozilla guys were shut up in a locked room until they come to their senses. Idiots!