HOW DO I DELETE THE PAYMENT INFORMATION YOU SAVED WITHOUT PERMISSION?
Firefox is autofilling my payment information even though I have opted out of all autofill. Beyond not ok. I have gone through all of the settings, and there isn't anything specifically dealing with saved payment info, so I can't fix this. If it was anywhere other than a secure work computer, I'd have deleted firefox for good by now.
Wšykne wótegrona (2)
By default it doesn't same info unless the user themselves checks those options. Otherwise you need to look at the privacy settings and manually delete that info.
That could be the form filler built into Firefox. Click in the field, enter a character or two and STOP ! Using the arrow keys, highlight an unwanted entry. Then press Delete (Mac=Shift Delete). Repeat as needed.
Do any of these links help you? https://support.mozilla.org/en-US/kb/control-whether-firefox-automatically-fills-forms