mozAlarms example

gistfile1.txt

/* Manifest snippets */

  "type": "privileged",
  "permissions": {
    "alarms": {
      "description": "Required to schedule alarms"
    }   
  },
  "messages": [
    { "alarm": "/index.html" }
  ]

/* Code */

function setUpAlarm() {
  
  // This the date to schedule the alarm
  var myDate  = new Date(+new Date() + 60000);
  console.log('date: ', myDate)

  // This is arbitrary data pass to the alarm
  var data    = { 
    foo: "bar"
  }

  // The "honorTimezone" string is what make the alarm honoring it
  var request = navigator.mozAlarms.add(myDate, "honorTimezone", data);

  request.onsuccess = function () {
    console.log("The alarm has been scheduled");
  };  

  request.onerror = function () { 
    console.log("An error occurred: " + this.error.name);
  };  
}

navigator.mozSetMessageHandler("alarm", function (alarm) {
  console.log('alarm fired')
  alert("alarm fired: " + JSON.stringify(alarm.data));
});