Unrecognized email account listed in MYACCOUNTS pageon gmail

Email extractor pulled four different addresses off my gmail 'myaccount' dashboard page. One looks like this-"login.php+Chrome+*********@gmail.com". Can you tell me what this is, and how I may access it? This is how it was extracted-

fla****@gmail.com fla****@gmail.com login.php+Chrome+kag*****@gmail.com kag*****@gmail.com