I upgrade from 3.5.10 to 3.6.6 network access fails. Restart system and 3.5.10 is running again.
Installed 3.6.6 update. Restarted system. Works for a short period and then can not connect to any server. All network functions fail. Restart system and 3.5.10 is now running and Firefox requests update. Cycle repeats
Every time Firefox opened
== After upgrading to 3.6.6