Privoxy 3.0.6-2. However, it works fine - it's just that (apparently) with all of the daemons running on startup, the watchdog timer expires before bootup is complete - leading to a reboot loop. Removing privoxy from the startup process provides enough time to activate the watchdog properly.

I just started up Privoxy this afternoon; as expected, everything works fine. I just don't run it on startup.