Possible security concern...

[#1]

Not sure if this should be in Feedback or elsewhere.
I've noticed several times recently (Auto login is currently shown as Off even though I did set it on for 2 years a few weeks ago) that if I refreshed the Account Details - View Transaction page I was met with the usual Login page. This would leave me to believe that I am, in fact, logged out.
But refreshing the page again without entering the login details showed the View Transactions page once more. From here I could access all other areas. Being that I am the only one using this PC it's not really an issue for me but wonder if it has implications for others or whether anyone one else can replicate it.
Using FF19.0.2 on W7 Pro 64. Haven't checked it with any other browser.

[#2]

Just tried that and oddly wasn't able to replicate it for myself.

[#3]

try clearing your cookies, as though the auto login might not be shown as switched on you may still have the cookie

[#4]

Strangely, after I posted I couldn't replicate it even though it had happened 3 or 4 times in the previous couple of days.
My usual setting is Auto Login for 2 years. I have reset it it thus.