Everytime I close my FF browser, it logs me out of Yahoo!, Digg, Gametrailers, and all the various sites with which I have accounts. I do NOT have it set to clear my private data every time I close it. Help!

Plugins installed:

• Default Plug-in
• Java(TM) Platform SE binary
• 1.7.0036.0
• DivX® Web Player
• MetaStream 3 Plugin r4
• np-mswmp
• npdivxplayerplugin
• Office Plugin for Netscape Navigator
• Google Update
• Shockwave Flash 9.0 r124
• iTunes Detector Plug-in
• NPVeohVersion4 plugin
• Java Plug-in 1.6.0_10 for Netscape Navigator (DLL Helper)
• Adobe Acrobat Plug-In Version 7.00 for Netscape
• The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.