Since updating to the last 2 versions of FF, something changed: If I log-in to, e.g. "X.com" I'm receiving cookies like: ''x.com www.x.com nimg.x.com'' If I delete www.x.com and nimg.x.com on CHROME I'm still logged-in. If I used to the delete these cookies with older versions of FF, same thing. NOW: Since a few weeks: Im logged-out immediately and have to log-in again (on page "x.com"). This is new and unwanted behavior!