This can be caused by a problem with the color profile for your display monitor or color profiles embedded in images.
Try to disable color management to test if it is caused by a problem with color management.

You can set the gfx.color_management.mode pref to 0 on the about:config page to disable Color Management.

• http://kb.mozillazine.org/about:config

You need to close and restart Firefox to make the change effective.

See:

• http://kb.mozillazine.org/gfx.color_management.mode

Hi cor-el,

Thanks for this - unfortunately your suggestion did not fix the over saturation of my firefox 25.0.1 browser -

The skin of the browser itself is over saturated -

icab and Safari both show correct color from my srgb jpegs - i do photography so color accuracy is important, i color manage the files, monitor, ‘puter and everything agrees that my pictures look the same except firefox -

Just looking at the tumblr site, i’d say that all the pictures are over saturated via firefox -

I’m using OSX 10.9, thank you

Did you close the Firefox menu bar (Firefox > Quit) or possibly reboot the computer after setting the gfx.color_management.mode pref to 0?

yes I did restart firefox and then checked that the gfx.color_management.mode pref was at 0 -

I can’t restart the computer at this stage (too much else happening), but i will also do that when I can after an hour or so and will post a message with the results - thanks

You can also try to disable hardware acceleration in Firefox.

• Firefox > Preferences > Advanced > General > Browsing: "Use hardware acceleration when available"
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

well cor-el, disabling the hardware acceleration button has solved the problem, maybe combined with gfx colour management = 0 also

firefox looks like everything else now so I can use it for my pictures - bliss -

thank you for your help, keith

You're welcome.

It may not be necessary to disable color management if disabling hardware acceleration fixed it, so you can try to reset the pref to its default value.

yes you’re right - so it was just hardware acceleration that caused the problem (gfx=2 works) - I should have checked this before I wrote my previous message - sorry and thanks for the fix, keith

You're welcome and glad that you were able to fix it.