Just ditch this firewall. Its nonsecure and never updated!
Terribly wrong, on 3.2 channel we release almost 2 times per month and we have a maintained LTS for kernel 4.1.35 and openssl openssl-1.0.1r-r0
Bleeding edge OpenVPN 2.4.3 and recently updated squid 3.5.26
Cheers,
Luca