User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8) Gecko/20100101 Firefox/4.0b8 Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8) Gecko/20100101 Firefox/4.0b8 When Firefox 3.6.13 is closed when a gmail account is logged in the next time Firefox 3.6.13 is started the user is prompted for the username and password. However in 4b8 when the browser is restarted the gmail account is still logged in. Reproducible: Always Steps to Reproduce: 1.login to gmail 2.close browser wait several minutes 3.start browser back up Actual Results: Gmail account is never logged out on browser close Expected Results: Gmail should prompt you for login credentials Firefox 3.6.13 and Firefox 4b8 are sharing the same data directory and therefore are using the same extensions.

Mozilla/5.0 (Windows NT 6.1; rv:2.0b9pre) Gecko/20110105 Firefox/4.0b9pre Works for me. Closing the browser after the gmail account is logged in and restarting the browser after sometime, typing gmail does not log into the account. Need to enter the credentials once again to log in. Please try by creating a new profile and check if you are able to reproduce. https://support.mozilla.com/en-US/kb/Managing+profiles#Creating_a_profile.