When login credentials for a site are stored, firefox shows the associated usernames as drop-down in the edit field of a site login. Since this shows *all* accounts that it knows for that site, I'd like to turn that off. I'd like to keep the auto-fill of passwords, once I've manually entered the username (as it was in the past). I've only found how to deactivate the whole auto-fill for both: username and passwords. Any way to get the old (=more discrete) behavior back? Thanks!