Examine source code of Surfchck

{
  "name": "__MSG_extName__",
  "default_locale": "en",
  "description": "__MSG_extDesc__",
  "version": "1.4.212",
  "manifest_version": 3,
  "icons": {
    "16": "assets/icon_16.png",
    "48": "assets/icon_48.png",
    "128": "assets/icon_128.png"
  },
  "action": {
    "default_popup": "Popup.html",
    "default_title": "__MSG_extName__",
    "default_icon": "assets/disconnected_128x128.png"
  },
  "background": {
    "scripts": [
      "js/Background.bundle.js"
    ]
  },
  "permissions": [
    "scripting",
    "storage",
    "activeTab",
    "tabs",
    "alarms",
    "declarativeNetRequest",
    "webNavigation",
    "management",
    "downloads",
    "cookies",
    "idle",
    "proxy",
    "webRequestAuthProvider",
    "webRequest",
    "notifications",
    "identity",
    "nativeMessaging"
  ],
  "host_permissions": [
    "<all_urls>",
    "*://*/*"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "ruleset_1",
        "enabled": false,
        "path": "assets/ruleset_1.json"
      },
      {
        "id": "ruleset_2",
        "enabled": false,
        "path": "assets/ruleset_2.json"
      },
      {
        "id": "ruleset_3",
        "enabled": false,
        "path": "assets/ruleset_3.json"
      },
      {
        "id": "ruleset_4",
        "enabled": false,
        "path": "assets/ruleset_4.json"
      },
      {
        "id": "ruleset_5",
        "enabled": false,
        "path": "assets/ruleset_5.json"
      }
    ]
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src *  data:; object-src 'self'; frame-src 'none';"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "*.png",
        "*.js",
        "*.css",
        "*.scss",
        "*.html",
        "*.json",
        "*.svg"
      ],
      "matches": [
        "<all_urls>"
      ],
      "extension_ids": []
    }
  ],
  "minimum_chrome_version": "107",
  "browser_specific_settings": {
    "gecko": {
      "id": "surfchck@surf.security",
      "strict_min_version": "113.0",
      "data_collection_permissions": {
        "required": [
          "browsingActivity",
          "websiteContent",
          "websiteActivity"
        ]
      }
    }
  }
}