Return --force!

[Human4ik1]

In version 0.9.54, the developer removed the --force option, which allowed using firejail inside Docker containers. This was very useful in some cases. Unfortunately, in the same version, the ability to use a proxy server for the isolated environment with authentication data was added. Now, two of the most important arguments have been separated by just one version of the application. Now, you either use Docker, or you use a proxy server, but you cannot use a proxy server inside Docker containers.