firejail:tldr:98449

The command "firejail ${firefox}" is used to run the Firefox web browser within a firejail sandbox environment.

Firejail is a security sandbox program that allows you to run applications in an isolated environment, restricting their access to your system resources and sensitive data. It provides an additional layer of protection against potential security vulnerabilities in applications.

In the provided command, "${firefox}" is a placeholder for the location or path of the Firefox executable file. By specifying the path to the Firefox executable, firejail will launch Firefox within a sandboxed environment.

Running Firefox in a firejail sandbox can help mitigate the risk of certain types of attacks, isolate the browser from other applications, and protect your system from potential security threats.