Privacy settings have not changed, but Firefox 18 is keeping me logged into facebook
I work for a FB game developer, and as a result I need to wipe cookies/cache in my browsers frequently. I have had Firefox set up to delete cookies when Firefox closes. This prevented me from staying logged into Facebook after closing Firefox. After upgrading to Firefox 18.0.2, I remain logged into my Facebook account even though I have not changed the cookie settings, nor have I selected the "keep me logged in" option on Facebook. Why has this behavior started and how do I make it stop if my settings haven't changed?
Re: Privacy settings have not changed, but Firefox 18 is keeping me logged into facebook
Do you keep tabs with Facebook opened when you close Firefox?
Tools > Options > General > Startup: "When Firefox Starts": "Show my windows and tabs from last time"
If you reopen websites automatically on a next start then Firefox will store cookies that are used in those tabs in the sessionstore.js file as part of the session data, so you won't get logged off if you close Firefox without closing the tabs first.
You can set the browser.sessionstore.privacy_level pref to 2 (never) or 1 (non-HTTPS) on the about:config page to disable saving cookies via session restore.
The browser.sessionstore.privacy_level_deferred pref is used when you do not reopen the previous session automatically via "Show my windows and tabs from last time" and uses the same values.