Portable Firefox Crashed

Dear All,
I am using Portable Firefox to browse the internet. I have an AOL mail ID (aksharatg@aol.com). I am able to login to my account without any problems. But when I click on Logout button the application (Firefox) crashes. But other mails and web pages are working fine.
I am using
Portable Firefox version 2.0.0.3
Operating System: Windows XP Professional SP2

Regards,
Akshara T.G