Examine source code of Random Game Suggester

{
  "manifest_version": 2,
  "name": "Random Game Suggester",
  "version": "1.0",
  "description": "Suggest a random game for you to play.",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "permissions": [],
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c353face-dd9e-414a-a6d5-0c996ed7847c}"
    }
  }
}