Yes and frankly, I have not trusted FireFox colour management in quite some time.
The colours seem to be more saturated than what I see using Chrome and Edge. I baseline this against what I see in Photoshop; which is close to what I see with Edge and Chrome.
interesting. I have largely replaced Firefox with Vivaldi, so I hadn't noticed, but I just checked Firefox. Because I hadn't used Firefox for a bit, I had an out of date version, and gfx.color_management.native_srgb was set to false. Firefox then updated itself, and that resulted in gfx.color_management.native_srgb being set to true. So, I reset it to false.
BTW, Vivaldi is great. It is produced by one or more of the people who wrote Opera before Opera was bought by a Chinese company. It's Chromium-based and can accept most Chrome extensions, but it doesn't have the security problems of Chrome. It's very fast and can be customized in far more ways than I have figured out so far. I now use Vivaldi as my default with DuckDuckGo selected as the default search engine and disconnect.me installed. The combination is fairly secure while still being fast. When something doesn't work, which is rare with Vivaldi, I revert to Firefox. I stay away from Chrome because it leaks like a sieve.