I’ve just installed Firejail, now what?!

Basic Usage document will help you get started. If you are stuck and need help to figure something out, don’t be afraid to ask.

Can you sandbox Firefox?

Firejail was build with Mozilla Firefox in mind. Sandboxing Firefox is by far the most popular application for Firejail. Check out our Firefox Sandboxing Guide.

Do I really need to build a security profile for my application?

No. If your application is not recognized, Firejail will use a very restrictive default profile. Yet, we encourage users to customize profiles. Building Custom Profiles and Building Whitelisted Profiles describe how to change exiting security profiles and how to create new ones.

It’s too easy, I’m getting bored!

There is no difficult in Firejail, at least not SELinux-difficult. But if you need something more challenging, try to customize your security filters, or go into some more advanced security topics such as X11 and Grsecurity:

Not quite like that, I was thinking about sandboxing games…

Take a look at this excellent Steam article on Joris_VR blog. Both Steam in Wine games are supported by Firejail sandbox, with full sound and 3D acceleration.


Across the Internet

If you are looking for external reviews, these are some of the best:,, and Linux Magazine published a very detailed feature article in April 2015. An online copy is available here.


l3net blog

2 thoughts on “Documentation

  1. Pingback: How to Sandbox Apps in Linux Systems | Beebom

  2. Pingback: linux process sandboxing with linux ‘user namespaces’ and firejail – atropineal

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