For what it’s worth, here’s a summary of the issue: Apple’s iMac (since September 2015) and MacBook Pro (since October 2016) computers have wide-gamut displays that support the P3 color space (larger than the sRGB color space). Unlike Safari and Chrome, Firefox still doesn’t convert sRGB data to P3 (for CSS colors and images that lack color space information), which results in oversaturated colors. Hence, if you use Firefox for web development on a wide-gamut display, you may want to additionally test web page colors in a different browser to ensure correct results.
People have been tweeting images that demonstrate this issue; see here: https://twitter.com/simevidas/status/954490103560331266 _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform