First post -- Firefox image display issues

[Gil Weber]

On Wed, 15 May 2024 17:36:41 +0200
Ralf Mardorf via ubuntu-users <ubuntu-users at lists.ubuntu.com> wrote:

> On Wed, 2024-05-15 at 17:24 +0200, Ralf Mardorf wrote:
> > On Sat, 2024-05-11 at 17:39 -0400, Gil Weber wrote:  
> > > at the same time Chrome rendered perfectly  
> > 
> > What model of what brand of display are you using?
> > Does render Chromium also perfectly?
> > 
> > Instead of a browser, did you also view the pictures by different
> > image viewers. Are there any differences when opening an image with
> > different image viewers?
> > 
> > Please provide a link against at least one of those images. I'll
> > take a look with different browsers and image viewers using Arch
> > Linux with an Intel GPU on an ordinary EIZO sRGB display, with a
> > quite good quality for an ordinary display and an iPadPro.  
> 
> Other subscribers could do the same by using different GPUs, different
> libraries of different Ubuntu flavours, that are using different
> graphics compositor.
> 
> We probably can't help you, but might be able to narrow done the
> culprit more precisely.
> 
> 

Ralf and all, I appreciate your help. 

I am using a Dell 27"  S2721D  monitor.

It renders images on websites perfectly in Chrome. But images on
websites in Firefox using Mint 21.3 are dark. Prior to the upgrade
to Mint 21.3 they were perfect in Firefox using Mint 20.3.

In a previous post I provided this link allowing
comparison of screenshots of images as displayed by Firefox and Chrome.
https://imgur.com/a/zfTH8Je

Please note this problem is only when when viewing images that are
within websites. Images called up directly (i.e., not viewed in a
browser) display as expected.

So, for example, https://imgur.com/a/vwkJWgi

The upper picture of the man is an image downloaded from a website. The
lower picture is the same image when viewed on that website using
Firefox. The "dark" problem with Firefox is evident.

And then here is the same image viewed within that website using Chrome.
https://imgur.com/a/O2Twjtb
It's not "dark" as it is in Firefox.

Does this help your investigation?
Thanks!
Gil