Examine source code of WhatRuns

{
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_icon": {
      "16": "images/icon_16.png",
      "32": "images/icon_32.png"
    },
    "default_popup": "popup.html",
    "default_title": "WhatRuns - click for more details"
  },
  "content_scripts": [
    {
      "all_frames": false,
      "js": [
        "js/jquery-3.2.1.min.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "js/browser-polyfill.js",
        "js/content.js",
        "js/notification.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "default_locale": "en",
  "description": "__MSG_appDesc__",
  "homepage_url": "https://www.whatruns.com/?source=plugin",
  "icons": {
    "16": "images/icon_16.png",
    "32": "images/icon_32.png",
    "120": "images/icon_120.png"
  },
  "manifest_version": 2,
  "name": "__MSG_appName__",
  "permissions": [
    "tabs",
    "webRequest",
    "activeTab",
    "storage",
    "http://*/*",
    "https://*/*"
  ],
  "version": "1.9.0",
  "web_accessible_resources": [
    "js/wrs_env.js",
    "images/*",
    "css/notification.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{66d854c2-fd1b-4857-bd0a-7d220e4834da}"
    }
  }
}