I was on my laptop browsing the web then I closed Firefox to go have dinner then I came back opened it all of my cookies are gone every time I opened Firefox again I got logged out of everything but in the settings the every website was listed in the cookies but it reset every time I reopened Firefox and the delete cookies after closing web browser was unchecked after a minute or so all of my logins are gone and I am helpless

System: Ubuntu Version : 110.1