Examine source code of VK Wall Cleaner

{
  "manifest_version": 2,
  "name": "VK Wall Cleaner",
  "version": "1.4",
  "description": "Удаление постов со стены сообщества ВК",
  "browser_specific_settings": {
    "gecko": {
      "id": "vk-wall-cleaner@local",
      "strict_min_version": "60.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "collects_personal_data": false,
        "collects_browsing_activity": false,
        "collects_health_data": false,
        "collects_financial_information": false,
        "collects_authentication_information": false,
        "collects_location": false,
        "collects_web_activity": false,
        "collects_user_activity": false,
        "collects_communication_content": false,
        "collects_sensitive_personal_data": false,
        "collects_personally_identifying_information": false,
        "uses_remote_code": false,
        "shares_data_with_third_parties": false
      }
    }
  },
  "permissions": [
    "activeTab",
    "tabs",
    "*://vk.com/*",
    "storage"
  ],
  "browser_action": {
    "default_title": "VK Wall Cleaner",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://vk.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ]
}