Stop LastPass filling out a form

Question

Is there a way to prevent the LastPass browser extension from filling out a HTML-based form with a input field with the name \"username\"?

This is an hidden field,

Answer 1

Two conditions have to be met:

1. The form (not the element) needs to have autocomplete="off" attribute
2. Lastpass user needs to have this option enabled: Settings > Advanced > Allow pages to disable autofill

So this depends on both user and the developer.