manifest.json

{
  "name": "Humble Bundle Steam Tool",
  "version": "0.4",
  "description": "A extensions that displays the steam links and current prices of all links in a humble bundle!",
  "permissions": [ "https://www.humblebundle.com/games/*", "declarativeContent", "storage", "https://store.steampowered.com/api/", "http://api.steampowered.com/ISteamApps/GetAppList/v0002/" ],
  "content_scripts": [
    {
      "matches": [ "https://www.humblebundle.com/games/*"],
      "css": ["popup.css"],
      "js": [ "jquery-3.3.1.min.js","content.js" ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": ["images/ajax-loader.gif", "popup,css"],
   "content_security_policy": "script-src 'self' ; object-src 'self'",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/extensionIcon16.png",
      "32": "images/extensionIcon32.png",
      "48": "images/extensionIcon48.png",
      "128": "images/extensionIcon128.png"
    }
  },
  "icons": {
    "16": "images/extensionIcon16.png",
    "32": "images/extensionIcon32.png",
    "48": "images/extensionIcon48.png",
    "128": "images/extensionIcon128.png"
  },
  "manifest_version": 2
}