Examine source code of Harangin

{
  "name": "Harangin",
  "version": "1.0.6resigned1",
  "description": "Blocks dangerous websites to protect young people.",
  "author": "Odel",
  "icons": {
    "48": "images/harangin48.png"
  },
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a9ceffc8-e2ae-4433-9b99-66ec69fb693f}"
    }
  }
}