Voir :

• https://librewolf.net/
• CIS Mozilla Firefox ESR Benchmark

$ debsums -as firefox
debsums: Error: symlink loop detected in path 'usr/lib/firefox/libnssckbi.so'. Please file a bug against firefox

$ ls -l /usr/lib/firefox/libnssckbi.so*
lrwxrwxrwx 1 root root     49 Jul  2 17:27 /usr/lib/firefox/libnssckbi.so -> /usr/lib/x86_64-linux-gnu/pkcs11/p11-kit-trust.so
-rw-r--r-- 1 root root 545208 Aug 14  2019 /usr/lib/firefox/libnssckbi.so.orig


$ debsums -as firefox
debsums: changed file /usr/lib/firefox/libnssckbi.so (from firefox package)
debsums: changed file /etc/firefox/syspref.js (from firefox package)


$ ls -l /usr/lib/firefox/libnssckbi.so.*
-rw-r--r-- 1 root root 545208 Aug 14  2019 /usr/lib/firefox/libnssckbi.so.orig