How to delete facebook emails from the login home page on a macbook?

[Taylor]

I go on facebook all the time on my macbook & alot of other people use my macbook laptop to go on facebook too. But when you type in a letter or double click at the top for your facebook emal, it has a list of diffrent emails that people have used for their facebook. How can you remove them? Help please!!! ):

[Yuuuup]

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