Hi, Until about two months ago I could run firefox binaries downloaded via https://download.mozilla.org/?product=firefox-latest-ssl&os=linux64&lang=en-US For about two months now I’m seeing segfaults when I try to run it. Previously I got it working with the following setup: cd $HOME/Downloads/firefox export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/run/current-system/profile/lib/:$HOME/.guix-profile/lib/:$HOME/.guix-profile/lib/nss/:$HOME/.guix-profile/lib/lib/:/gnu/store/69x60a1pn0mf5jv68al8awjfkyp1miwi-gcc-8.3.0-lib/lib/:./browser:." ./firefox-bin This used to work with only minor limitations. Now what I get is ./firefox-bin Speicherzugriffsfehler (segmentation fault) With gdb I get the following: $ gdb ./firefox-bin … Reading symbols from ./firefox-bin... (No debugging symbols found in ./firefox-bin) (gdb) run Starting program: /home/arne/Downloads/firefox/firefox-bin Program received signal SIGSEGV, Segmentation fault. 0x0000000000000000 in ?? () (gdb) bt #0 0x0000000000000000 in ?? () #1 0x00007ffff7c28d38 in ?? () #2 0x0000000000000000 in ?? () Do you know a way to fix this? I need a way to test different firefox versions, because I use Guix in homeoffice which includes web development. If I can’t get these to run, I might have to switch away to a different distribution. There’s so much going for Guix that I want to keep it, but being able to run binaries compiled for Linux X86_64 is a hard requirement for work. Best wishes, Arne -- Unpolitisch sein heißt politisch sein ohne es zu merken