I'm afraid you will get a no answer on this. Firejail seems to use Linux specific tools to do its task and IIRC I've read some not so nice remarks about at least BPF on some of OpenBSD mailing list. Anyway, OpenBSD is heading into the same direction (of apps limited priviledges) by using its own pledge API/syscall. Grep for pledge in your preferred app port and see if this is already pledged or not... If not and if you are a programmer, then read pledge(2) and give it a try...
On Thu, Feb 25, 2016 at 8:23 PM, hans peter <[email protected]> wrote: > Hello, > Firejail secures* the everyday apps that a user uses on an example > Desktop machine: Firefox, transmission, etc.: > https://firejail.wordpress.com/ Is there any alternatives on OpenBSD for > Firejail? Or could it be ported? *The sandbox is lightweight, the > overhead is low. There are no complicated configuration files to edit, no > socket connections open, no daemons running in the background. Many > thanks, http://www.openbsdfoundation.org/campaign2016.html

