title: Firebase Authentication setting users to deactive without using currentuser
body: <p>I am making an admin tool page to allow admins to change users email for when they change or set their account to deactivate so they can not access the site anymore. Everything I have looked at seems to be using 'CurrentUser' but this will not work due to the fact they will be logged in as themselves which is marked as Admin level so they have access to the tool. So is there any way to change a users email for authentication without logging in as them?</p>