This problem started about 2 FF upgrades ago, maybe FF27 or FF 28. It used to be I would log into a website (name & password -not saved in FF) in a tab and no matter where in FF I was, another tab or even another FF Window, I was still logged into that site. Now, every time I open a new tab or Window I have to log in again. Example: Yahoo mail: I would log into mail and if I attempted to log into another Yahoo Mail account (I use X-Notifier so this is easy) it would log out the first account in the same tab and log in the second. Now it logs in the second and leaves the first.. They are both active at the same time. I can have any number of mail accounts in tabs open at once. Didn't work this way before, wish it didn't now. Too easy to use the wrong account. I have tried several changes within "options", none have worked. This is obviously a change to something within FF so reinstalling FF won't help. Suggestions? Thanks