I'm logged in to Firefox on 3 devices: personal laptop, phone, and computer at work. I'd like to be able to sign out / log out when I finish work, so nobody can access my data but I don't seem to be able to do that. In my view it's neither private nor secure. Because I teach, computers in the school are shared by different teachers. When I used Google chrome, I'd log out and nobody would be able to access my data. With Firefox it seems to be different. Why? I really wanted to switch to Firefox but I don't think it could be an option now. 🥲