How do I delete an email address from Facebook App login page on Android? A mate recently used my mobile facebook app to log into his account. Now, I always get his email as the default when I go to log in to Facebook on Android App. Although not a big issue it is very frustrating.

I have deleted data and cache from App Settings. No go.

I have removed Accound from Account settings. No go.

I have set up another Gmail account for playstore and downloaded it through there. Still no change.

When I press sown on the email address whilst on log in page there is no option to remove address.

Please help as this is so frustrating.

Thanks
First log out from your account and then follow the following steps as given on:
[https://m.facebook.com/help/670304209712363?helpref=uf_permalink
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To remove an account from your phone or mobile device:


Go to the login screen on the Facebook app 
Tap [Account to be removed]
Tap Remove account from device


For making for account as default just first logout and then login into your account.