Firefox password manager - multiple logins for HTTP authentication

When you're prompted to login to a site using HTTP authentication (the kind with the pop-up box requesting username/password), Firefox's password manager populates it with only the first stored password for that domain.

Is there a way to have Firefox prompt for WHICH account should be used?

It is unlike the normal HTML login forms in which you can just press the down arrow to select from multiple login accounts.

Answer

You may do it with last pass password manager Firefox extension.