Recently my auto timed logout (set in my System Security Pref) is being canceled by Safari for some reason. I get a popup message to that effect. What would cause this behavior? I have used Safari 5.1.7 and Snow Leopard 6.8 for a long time on my MacBook Pro and have never had a problem with the timed security logout. The only recent change I have made was to update the Firmware as suggested by Software Update on my mac.
Pro, Mac OS X (10.6.8), MBP - 2.4GHz Core2 Duo- 2010