Examine source code of Farm Weather Tracker

{
  "manifest_version": 2,
  "name": "Farm Weather Tracker",
  "version": "1.0",
  "description": "Farm Weather Tracker. This utility helps users check the current weather for their farm by entering their postal code. This is a useful tool for farmers to monitor the weather conditions in their area.",
  "permissions": [],
  "browser_action": {
    "default_popup": "game.html",
    "default_icon": {
      "128": "images/farm-logo.png"
    }
  },
  "icons": {
    "128": "images/farm-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{08f027b4-64e2-4877-ae7e-8d4094930c0b}"
    }
  }
}