Yeah, Facebook’s UI is like a moving target lately. @codecrafter already covered the “normal” logout spots, so I’ll skip repeating that and focus on a couple of less obvious tricks + shared‑device safety.
1. Use “Log out of all sessions” as a shortcut
If you’re really worried about that shared device and don’t even want to hunt for the button on it:
- On any device where you can see the menus clearly (even a different phone or computer), go to:
Settings & privacy → Settings → Security and login - In Where you’re logged in, hit See more.
- Click Log out of all sessions.
That instantly kills your login on every device, including the shared one, even if you never found the logout button there.
2. Use the “switch account” screen to escape
Sometimes the app buries the logout, but still has the account switcher:
- From the app, tap your profile picture in the top right.
- If it shows an option to Add account or Switch account, tap that.
- On that screen, check for a tiny Log out or 3‑dot menu next to your profile.
- If you can’t log out, at least choose Remove account from this device.
That will stop auto login on that phone/tablet.
3. In a browser, kill the login with the browser itself
If Facebook’s menu is bugged, you can still sort of “force” a logout:
- In Chrome / Edge / Firefox:
- Open Settings → Privacy / Cookies.
- Find the option to Clear cookies for a specific site.
- Search for
facebook.comand delete those cookies.
Next time someone goes to Facebook, it will ask for email + password again. No visible logout button needed.
4. Remove saved passwords & “stay logged in” stuff
A lot of “I thought I logged out” comes from the browser or OS re‑logging you in:
- Check your browser’s Password Manager and delete any Facebook entry.
- On the shared device, disable “Autofill passwords” for Facebook if possible.
- On the Facebook login screen, if it shows a checkbox like Keep me signed in, make sure it is unchecked before logging out.
5. If the UI is visibly broken
This is where I slightly disagree with @codecrafter: I’d actually start with these quick tests before reinstalling the whole app:
- Rotate your phone and then rotate back.
- Force close the app, reopen it.
- Log in at m.facebook.com in a browser instead of the app, then use the menu there to log out and clear cookies.
Sometimes Facebook just glitches and hides the bottom of the screen so the logout is literally off‑screen. Not your fault, just bad UI.
tl;dr: if you absolutely can’t find the button on that shared device, use Security and login → Log out of all sessions from another device, then nuke cookies and saved passwords on the shared one. That pretty much guarantees you’re not hanging around logged in.