The feature "Basic Auth autofillAutofill HTTP basic auth dialogs with saved credentials." is a bit too extreme. It really tries to already log in. That goes too far. If I have multiple logins per URL, this feature will try many times the wrong password and ban my IP.
It should just work like on Chrome, where the fields of basic auth are prefilled and i can still check what it did and then press enter.
It is also spooky to never really know if a site had the basic auth popup or not, as it is automatic. I don't like that.

Change this feature or make it into two checkboxes where one is basic auto prefill and one is basic auth auto login