Firewall alerts and apps on external drives/images

I understand why this is not allowed by default, although is the firewall ever going to allow us to manually white list external drives/images so we can save rules between reboots? I have a lot of apps now running from a truecrypt container and the constant firewall alerts for the same apps over and over again is annoying. I’m surprised this isn’t more of an issue since a lot of users are now using portable apps on USB drives. Aside from this, the new 5.0 version is fantastic, good work.