All the incognito browser windows share the same “session” in Firefox. So say you open an Incognito window to browse Facebook or something, then you open another Incognito window, this new incognito window is linked to the previous incognito window, meaning you are logged into Facebook at that new Incognito window as well. This is because, as I explained before, all the incognito windows share the same “session”
The only way to clear incognito window is to close ALL of them and then create a new incognito window. You dont have to close the main non incognito Firefox window though, just close all the incognito windows. Then open a new one, now your previous session is destroyed and you are new again.
You may know it but its not that common knowledge as it should have been
Yes they are but be careful on how Firefox stores passwords. I hate the way you can just go to some menu and click on show password, its no good on Chrome either but providing a menu to just view passwords means anyone and their mother can read your gmail passwords.
Firefox has a way to encrypt passwords use that atleast, or maby you already have in which case everything I wrote so far is unnecessary but thats okay.