Deleting corrupted email address prompts

[Sebastian42]

When I try to log in to websites, three different usernames are prompted, one is my correct Gmail address, one is my correct mobile phone number, and one is my correct Gmail address, with 'joseph' appended in the case of Firefox, but 'busy' in the case of Chrome. How can I delete those two corrupted prompts (one from Firefox and one from Chrome) ? x32Win10ProV21H2

[Sebastian42]

Although I tried and failed before making my post, I have since been able to 'select' the corrupted email prompt and remove it, by pressing the DEL key. The corrupted email address has NOT been prompted since I achieved that. Nor has the DIFFERENT corrupted email address been prompted by Chrome - SO FAR !