Firetools is the graphical user interface of Firejail.
Firejail is a SUID sandbox program that reduces the risk of security breaches
by restricting the running environment of untrusted applications using Linux
namespaces, seccomp-bpf and Linux capabilities. It allows a process and all
its descendants to have their own private view of the globally shared kernel
resources, such as the network stack, process table, mount table. Firejail can
work in a SELinux or AppArmor environment, and it is integrated with Linux