A multi-functional peripheral 21 according to this invention operates in accordance with a web browser software, and includes: a web browser section 5 configured to store cookie information received from a web server section 53 into a setting information database 6; and an apparatus control section 7 configured to manage the cookie information in accordance with a mode set by a verification mode setting section 13. In a case where the mode set by the verification mode setting section 13 is a user verification inactive mode, the apparatus control section 7 discards the cookie information from the setting information database 6 after operation of the web browser section is terminated.