Can web sites in one tab access information from a web site I am logged in to in another tab? Example: If I log into my bank web site in one tab and I am browsing another site in another tab that may not be very secure, can that web site or adware access my bank log in information or information exchanged with my bank site? I ask this because I notice that firefox remembers that I am logged into web sites even when I close that site and reopen it later during the same browsing session, so firefox is remembering my information, can other opened web sites be accessing this? I have my browser set to delete all history/cookies when I exit firefox, so I usually exit firefox completely before and after logging into my bank web site so nothing is stored or possibly picked up by another web site. Is this unnecessary? Thank you!