Hi, Last idea: check that the output of realpath /home/gfp/.guix-profile/bin/icecat
is /gnu/store/hchyj7faw7f98njsja27i89v3jk7bbqm- icecat- 91.6.0- guix0-preview1/bin/icecat and that icecat --version is something like 91.6. My output: gfp@Tuxedo ~$ realpath /home/gfp/.guix-profile/bin/icecat /gnu/store/hchyj7faw7f98njsja27i89v3jk7bbqm-icecat-91.6.0-guix0-preview1/lib/icecat/icecat gottfried