How to Use Firejail In i3?

On previous DEs, I simply modified the command in the application launcher properties, but since i3 doesn’t use application launchers, that’s not possible. Is it possible to launch an application from Dmenu within Firejail automatically?

Well, by running sudo firecfg every app with a .desktop entry will be sandboxed automatically. For other apps you would have to assign a keybinding in your i3 config, e. g.:
bindsym $mod+y exec firejail <APP>

Dmenu will still only launch .desktop apps in a sandbox, which is by design.

Hope this is what you’re looking for.

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