Examine source code of Camera Wifi Guide

{
  "manifest_version": 2,
  "name": "Camera Wifi Guide",
  "version": "1.0",
  "description": "Step-by-step guide to install WiFi camera at home.",
  "browser_action": {
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "camera_wifi_guide@addon.dev"
    }
  }
}