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Radioactive said:
Is http://moe.imouto.org/post/show/40734 an example of what you are referring to?
Yes, ones like those. I never said they don't work, just that that have a huge performance hit if you enable color management for all images in Firefox 3.0-3.1.

If you have Firefox 3.0.x go into about:config and set gfx.color_management.enabled = true OR download a 3.1 nightly and set gfx.color_management.mode = 1 and then try loading the image. Instead of taking less then a second with color management off, it will take around 7-25 seconds (depending on image size and dimensions) while maxing out a CPU core and lagging down or even hanging the whole browser completely until it loads the image.

Do you have to no matter what upload images in an interlaced format?

Is there a reason, that especially with people who upload there own scans or clean scans to upload these multi-pass images?

I would like to be able to keep color management on in Firefox so I see the correct colors on images with embedded color profiles and when I run into the rare (likely only 1-5% of all images) progressive JPEG or interlaced PNG uploaded on moe, the performance hit weighs out the benefits.

This is just a kind request to when possible (without quality loss) to upload an image as non-interlaced, to do so for others, like me, who may want to use color management in Firefox.

Maybe starting to tag those images with an "Interlaced" tag might be an alternative solution if people must continue uploading images in that format considering they are rather rare to begin with. Having images tagged as such would act as a warning to steer clear of trying to view those images full-size before downloading and instead just download them directly and view them outside of Firefox.