So this has been an issue for a while:
I'll go to atariage.com and click on the forums link. Then I'll go to log in and firefox will pop up a message over the login form saying the connection isn't secure instead of autoentering my login info.
So I check the url and it's not using https.
So I add https:// to the beginning of the url and hit enter/return. Now I have a secure connection.
So I enter my login. Main forum page reloads, still says it's using https... But if I click through to anything else on the forum it is again not using https.
I typically use Firefox and am running the latest stable release. No beta or anything like that. The website also behaves the same way on chrome, though chrome isn't as fussy about auto entering login details on an insecure form.