Steps to reproduce the problem:
1. N/A
2. 
3. 

What is the expected behavior?

What went wrong?
- I downloaded jswipe from the apstore (https://play.google.com/store/apps/details?id=com.smooch.labs.jswipe&hl=en_GB)
- I pressed 'log in using facebook'
- The overlay opens and I pressed on the blank email field, which then shows an autofill option of an email I have never seen before
- Selecting the email autofills the password (I can view this in plain text by pressing 'show')
- The details are legitimate and allow me to log in to this persons jswipe account
- The same thing occurs when logging into facebook.com using chrome on my phone (i do not use the fb or fb messenger ap)
- This does not happen in other aps that require facebook, such as tinder
- This is only occurred after installing jswipe, I have never had it happen before
- Chrome on my desktop does not have any autofill details stored, not even my own username/pass as I primarily use firefox

Did this work before? N/A 

Chrome version: <Copy from: 'about:version'>  Channel: n/a
OS Version: 58.0.3029.83
Flash Version: Shockwave Flash 25.0 r0

- I have never heard about this person until today and do not have any friends in common
- I have never allowed anyone to use my phone to log in to facebook
- I have occasionally used chrome on a public computer at my university to access my google account (but never facebook)and have always logged out afterwards. Furthermore this person does not attend my university.
- I apologize if this is not strictly chrome related
- I have messaged the jswipe devs about this and have yet to receive a response.