OTOH, the only other browser that lets you tweak its chrome with your CSS is AFAIK Vivaldi.
[1] https://gist.github.com/myfonj/f5415dd0580663a82ea18407ef2ee...
Edit: Welp, the new Firefox update kinda broke MaterialFox: https://i.imgur.com/biLz0e2.png
I never wanted a carbon copy of Chrome, just something that looked good, so I'm glad to see Firefox provide a nicer default experience and add its own unique style. It's actually pretty similar to MaterialFox anyway, aside from the "floating" tab style and slightly higher vertical space usage.
Personally, the previous design was fine and this one is too. Neither has made any meaningful difference to my user experience.
Edit:
Scratch that. I've just noticed that tabs can now have a sort of status line, telling me, for example, that's it's playing something. There was functionality sort of like this before, but this is a nice improvement. Great.
No, this website doesnt have favicons. I have a dozen other domains bookmarked that don't have favicons.