Unknown Username showing up in drop down menu
So I visited a website with a username and password field, clicking on the Username box opens a list of about 15 usernames, of which 14 I recognise from using elsewhere.
One of them is very distinct and is not something I've ever used before, I'd really like to know where it came from.
I've tried viewing the login.json file but the website doesnt appear on the list of sites, I think thats looking in the wrong place anyway as clicking on the Username field pulls up over a dozen usernames from different sources I wouldnt even use on the site I visited, so I assume theres a list somewhere else that might shed some light?
Couldnt find an answer to this elsewhere.
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should add- I live on my own, nobody else shouldve been able to use this computer.
Firefox has two features that might suggest field values in a drop-down: Password Manager and Form History. I guess there's also the Address autofill feature, but that one looks very distinct so you would know in that case.
To see which feature that the suggested name is coming from, you can temporary disable each feature one at a time. These are set on the Options page. Either:
- Windows: "3-bar" menu button (or Tools menu) > Options
- Mac: "3-bar" menu button (or Firefox menu) > Preferences
- Linux: "3-bar" menu button (or Edit menu) > Preferences
- Any system: type or paste about:preferences into the address bar and press Enter/Return to load it
In the left column, click Privacy & Security"""
Then on the right side, the checkboxes are:
- "Ask to save logins and passwords for websites" for the Password Manager -- does that affect what Firefox suggests on that form? To see saved logins, use the "Saved Logins..." button in that same part of the Options page.
- In the History section, expand the options using "Firefox will: Use custom settings for history" and then you can uncheck the box for "Remember search and form history" -- does that affect what Firefox suggests on the form?