In the past couple days I've run into an issue where Firefox on my iPad signs me out of all my accounts on various websites. It doesn't happen immediately when I close it, but if I log into one of my accounts and leave the iPad to sit for an hour or so, I'll find I'm logged out when I open it again. I'm not encountering this problem with Firefox on my other devices or with Safari on my iPad (I'm using two browsers for sites where I have two accounts). I've seen answers to similar problems talk about going into cookies settings, but it seems the settings menu is configured differently on the mobile version from the desktop version. The screenshot shows the one menu I could find that mentions cookies. I switched it to not clear cookies, but I think this is about choosing data to clear on this particular screen, rather than what is cleared on closing. Either way, it didn't help. Any ideas what's happening and how to get it back to normal?