How to make email stop showing up at Facebook sign-in?

[phone 26]

Even though i haven't logged onto facebook on my sister's laptop, it keeps showing my email address in the sign-in bar. and whenever i uncheck the "keep me logged in" box, it just checks again once i refresh the page. is there a way i can make it stop doing this?

i was thinking about deleting my facebook and making a new account once my email stopped showing up on her laptop. would that work?

[sanober h]

"deleting my facebook and making a new account once my email stopped showing up on her laptop" that would work. and there is no way to stop doing because ur sister might have checked it and then it keep doing it.