Examine source code of Waste Tracker

{
  "manifest_version": 2,
  "name": "Waste Tracker",
  "version": "1.0",
  "description": "Track your waste and get recycling tips directly in your browser.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Waste Tracker"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{46209847-d90c-4b5d-9a9b-33ce206918f5}"
    }
  }
}