don't need this anymore now that homebrew's privoxy ships with a launchctl
I use homebrew. It doesn't create this when you install Privoxy.
Copy the contents of the .plist file to
sudo vim /Library/LaunchDaemons/org.privoxy.plist
sudo chown root:wheel org.privoxy.plist launchctl load /Library/LaunchDaemons/org.privoxy.plist launchctl start org.privoxy.launchd.privoxy