Provided are a tethering-type head-mounted display (HMD), and a control method thereof. The HMD is in communications with a mobile terminal and includes a display to selectively display content. A sensor detects a state in which the HMD is worn by a user, and the HMD presents notification information about an event detected in the mobile terminal. The controller further pauses, when the sensor senses a change in the state in which the HMD is worn by the user while the notification information is being presented by the display, the presentation of the content, and generates, based on pausing the presentation of the content, bookmark information identifying the content and a point in time when the sensor senses the change in the state in which the HMD is worn by the user.