Examine source code of Daily Tasks Reminder

{
  "manifest_version": 2,
  "name": "Daily Tasks Reminder",
  "version": "1.0",
  "description": "A simple addon to manage daily tasks with reminders.",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "permissions": [
    "storage",
    "notifications"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{005e2278-eb34-4955-8df7-f5dee10e04c6}"
    }
  }
}