494366 - Image with a color profile renders incorrectly (neon Firefox logo)

Status: NEW

(Core :: Graphics: Color Management, defect)

Description

[Alex Faaborg [:faaborg] (Firefox UX)]

The past few days I have seen an odd behavior with the rendering of color profiles in Firefox as I post new iterations of the Firefox icon (and play close attention to the color being presented).

The screen shot I'll attach displays the source image (left) and the image displayed incorrectly in Firefox (right), they are very different.

The second screen shot displays the source image (left) and the image displayed in Firefox immediately after the browser was restarted, they appear the same.

Unfortunately I do not yet have specific steps to reproduce, but I'll also attach the same file being displayed in case it is useful.

Comment 1

[Alex Faaborg [:faaborg] (Firefox UX)]

Attachment: The bug in progress

Here the image being displayed in Firefox is displayed incorrectly, with colors that are far too saturated.

Comment 2

[Alex Faaborg [:faaborg] (Firefox UX)]

Attachment: Correct behavior

This is the exact same file being displayed correctly, immediately after a browser restart.

Comment 3

[Alex Faaborg [:faaborg] (Firefox UX)]

Attachment: File in question

Here is the file that was being displayed in Firefox, both incorrectly and correctly.

Comment 4

[Alex Faaborg [:faaborg] (Firefox UX)]

Attachment: Problem occuring with Preview.app vs. Finder Quick Look

Really strange, this may actually be more fundamentally a bug with OS X.

Comment 5

[Jeff Muizelaar [:jrmuizel]]

Do you have multiple monitors, and is it possible that the problem is related to which monitor the application starts up on?

Comment 6

[Alex Faaborg [:faaborg] (Firefox UX)]

>Do you have multiple monitors, and is it possible that the problem is related
>to which monitor the application starts up on?

Yes, I'm using a Macbook Pro with the default "Color LCD" profile, and a 24" dell monitor, with the "DELL 2407WFP" profile.

Some things that I don't yet understand:

-If you open the Firefox logo in question in ColorSync, it lists the ICC profile as "DELL 2407WFP" and displays overly saturated:

--How did my monitor profile end up getting embedded in a PNG file?  Do device profiles carry through in a screen grab in some situations?

--Why do apps that honor color profiles (like Firefox) selectively choose if they should render the "DELL 2407WFP" profile embedded in the image.  (also, Preview.app vs. Finder Quick Look).  Even with my external monitor detached, apps seem confused as to if they should be using the "DELL 2407WFP" profile embedded in the image.

While this is all extremely confusing, it's looking less and less like a Firefox bug.

Comment 7

[philippe (part-time)]

(In reply to comment #6)

> --How did my monitor profile end up getting embedded in a PNG file?  Do device
> profiles carry through in a screen grab in some situations?
Yes. Screenschots get the profile of the (main ?) monitor - or at least the monitor on which they are taken. I don't have a multi-monitor set up at the moment.
 
I'm not sure about the Preview vs Quick Look thing. Except to say that the image looks exactly the same in Preview as it does with Quick Look, here

Comment 8

[Alex Faaborg [:faaborg] (Firefox UX)]

>Yes. Screenschots get the profile of the (main ?) monitor - or at least the
>monitor on which they are taken. I don't have a multi-monitor set up at the
>moment.

Yeah, this does appear to be the case. That now makes sense.

Ok, so perhaps a better summary of this bug is: Firefox requires a restart before it honors the device color profile of a recently attached monitor?  (In my case I attach a Dell monitor to my laptop on and off throughout the day, and rarely restart Firefox).

If that were true, then this both a Firefox bug, and a Finder Quick Look bug (which fails in an identical manner).

Comment 9

[Alex Faaborg [:faaborg] (Firefox UX)]

Sean: have you encountered this color profile bug in Firefox during your work?

Comment 10

[philippe (part-time)]

(In reply to comment #8)

> Ok, so perhaps a better summary of this bug is: Firefox requires a restart
> before it honors the device color profile of a recently attached monitor?  (In
> my case I attach a Dell monitor to my laptop on and off throughout the day, and
> rarely restart Firefox).

Afaik Gecko reads the device profile at startup and doesn't dynamically swap profiles (few apps do, actually).

You should probably some colour or saturation errors/shifts if you drag the browser window from main to secondary profile.

Can you try the same thing with Safari? I expect the same kind of results...

Comment 11

[Alex Faaborg [:faaborg] (Firefox UX)]

Yeah, so I guess this would be more of a feature request than a bug?  I'll try out Safari and try to get a better sense of Firefox's behavior when I'm back at the office with monitors to play with.

Comment 12

[Mihai Morar, (:MihaiMorar)]

Works for me using Latest Nightly 27 on Mac OS 10.7.5 Alex can you still see this issue on latest builds?