Examine source code of Steam Game Search

{
  "manifest_version": 2,
  "name": "Steam Game Search",
  "version": "1.1",
  "description": "Search for a game and redirect directly to its Steam store page.",
  "icons": {
    "48": "steam.svg"
  },
  "browser_action": {
    "default_icon": "steam.svg",
    "default_popup": "popup.html",
    "default_title": "Steam Game Search"
  },
  "permissions": [
    "activeTab",
    "https://store.steampowered.com/"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e67727b9-18af-4ec2-a44f-f0aa45d78dd2}"
    }
  }
}