Examine source code of Nangkep Insera

{
  "manifest_version": 2,
  "name": "NANGKEPINSERA",
  "version": "1.0.17",
  "description": "Auto grab data web dan export CSV",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "browser_action": {
    "default_title": "NANGKEPINSERA"
  },
  "sidebar_action": {
    "default_title": "NANGKEPINSERA",
    "default_panel": "sidebar.html",
    "default_icon": "icon48.png",
    "open_at_install": false
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "data/DB_PIC_GAMAS.json",
    "data/district.json"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "NANGKEPINSERA@local",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}