The fox chasing its tail is an iconic brand, and also an iconic color scheme. I like the other icons that carry forward the Firefox color scheme to other shape

The fox chasing its tail is an iconic brand, and also an iconic color scheme. I like the other icons that carry forward the Firefox color scheme to other shapes (system 1, row 2), that still feels firefox-y without being Firefox, and would be a good look for firefox affiliated products. When you get down to the third row of system one, or the "master brand" icon, it loses both the recognizable shape and the recognizable color scheme of the Firefox brand. System #2 is just a mess. I don't even know what they're going for there.