Examine source code of Cookie Vault

{
  "manifest_version": 3,
  "name": "Cookie Vault",
  "version": "1.19.5",
  "description": "Restore cookies from a file, or view/edit/delete/paste-inject cookies already in your browser via Site Manager. Everything runs locally — no data ever leaves your device.",
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'; worker-src 'self';"
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "permissions": [
    "cookies",
    "tabs",
    "storage",
    "unlimitedStorage",
    "clipboardRead",
    "clipboardWrite"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "incognito": "split",
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "author": "Maruf Hossain Keyas",
  "homepage_url": "https://github.com/marufhossainkeyas11/Cookie-Vault",
  "browser_specific_settings": {
    "gecko": {
      "id": "cookie-vault@local.extension",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}