Did you check in the settings and make sure it's not checked? see screenshot

Yes, I am sure I do not have it checked. That's why I'm asking the question; it doesn't make sense.

You should show the issue and block out personal info. What site(s) are showing your card?

You should check on all devices that you run Firefox.

I only run firefox on my laptop and I do not sync devices. I cleared all the data and history from my browser. When I went back to the site that had my credit card information, it was gone. That doesn't necessarily solve the problem but I'll have to wait and see if it happens again. Thank you for your assistance.

We'll leave the light on for ya.  ;-)) Mark it as resolved.

Suggestions in a login drop-down list that have a key icon in front are login suggestions that you need to remove in the Password Manager.

• https://support.mozilla.org/en-US/kb/password-manager-remember-delete-edit-logins

Suggestions in a drop-down list without a key symbol are autocomplete saved form data. Suggestions without a key icon are part of autocomplete saved form data that you should be able to remove by selecting this item with the cursor Down key and pressing Delete (Mac: Shift+Delete).

• https://support.mozilla.org/en-US/kb/control-whether-firefox-automatically-fills-forms

Thank you for your response. I don't use the password manager. I don't have firefox save my passwords. The only thing I was using was the auto fill for addresses and I have now turned that off. Clearing my history, cookies and data temporarily solved the issue. I'll have to wait to see if it happens again. Thanks again!