Examine source code of Tenangin

{
  "manifest_version": 2,
  "name": "Tenangin",
  "version": "1.1",
  "description": "Ekstensi ini memblokir situs judi dan mengarahkan ke halaman edukasi",
  "permissions": [
    "tabs",
    "webNavigation"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Tenangin"
  },
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b94be546-2321-4b04-a70f-6702827366a2}"
    }
  }
}