I was curious about the new IceCat 60 and it's CSS problem, so I tried to install it. I'm on on Ubuntu+Guix: guix --version guix (GNU Guix) a68b45142373dd75bc96f9c4f8151bcd4e972888 installed it in a separate profile: guix package -p guix-test-profile -i icecat Then started it: guix-test-profile/bin/icecat On the command line, it showed one message (is this relevant or just part of the usual Gtk-Noise?): Gtk-Message: 08:50:02.414: Failed to load module "canberra-gtk-module" When Icecat is up, it looks "normal" and can be used normally [the more images a site uses, the better the user experience is :-)], just that ALL letters are just boxes with numbers in them (i.e. what you usually see only partially when some wired UTF-sign is not installed). As this is not related to the CSS-Problem, I open a new bug. Screenshot attached. Björn