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CONTRIBUTING.md

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Contributing

Welcome to firejail, and thank you for your interest in contributing!

Opening an issue

We welcome issues, whether to ask a question, provide information, request a new profile or feature, or to report a suspected bug or problem.

If you want to request a program profile that we don't already have, please add a comment in our dedicated issue:

When submitting a bug report, please provide the following information so that we can handle the report more easily:

  • firejail version. If you're not sure, open a terminal and type firejail --version.
  • Linux distribution (so that we can try to reproduce it, if necessary).
  • If you know that the problem did not exist in an earlier version of firejail, please mention it.
  • If you are reporting that a program does not work with firejail, please also run firejail with the --noprofile argument. For example, if firejail firefox does not work, please also run firejail --noprofile firefox and let us know if it runs correctly or not.
  • You may also try disabling various options provided in /etc/firejail/<ProgramName.profile> until you find out which one causes problems. It will significantly help in finding a solution for your issue.

Please note: If you are running Debian, Ubuntu, Linux Mint, or another related distribution and you installed firejail from your distro's repositories, please ensure that all of the following packages were installed:

  • firejail
  • firejail-profiles

A common source of issues is that firejail-profiles was not installed when installing firejail.

Security vulnerabilities

See SECURITY.md.

Opening a pull request

Pull requests with enhancements, bugfixes or new profiles are very welcome.

If you want to write a new profile, the easiest way to do this is to use the profile template:

If you have already written a profile, please make sure it follows the rules described in the template.

If you add a new command, here's the checklist:

  • Update manpages: firejail(1) and firejail-profile(5)
  • Update shell completions
  • Update syntax files (run make syntax or just make)
  • Update --help

Editing the wiki

You are highly encouraged to add your own tips and tricks to the wiki.