My wife and I have Facebook ID's which only differ by two letters (our initials). If I log off and try to log in with her ID, Facebook 'helpfully' jumps in and tells me I've made a small typo and they have generously corrected it for me.
I have not made a typo and can't figure out how to stop Facebook from doing this. It totally prevents my wife from logging on to Facebook using the larger screen on my desktop system.
There must be a way to tell Facebook to keep it's fingers out of the process.
It is not Autofill, or LastPass or anything like that it is Facebook. See the attached picture.