Examine source code of Guarda-Frames

{
  "manifest_version": 3,
  "name": "Guarda-Frames",
  "version": "0.1.0",
  "description": "Neutraliza iframes/overlays invisíveis, bloqueia popunders e pergunta antes de abrir/redirecionar para outra página.",
  "permissions": [
    "webNavigation",
    "storage",
    "webRequest",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "bloqueado.html"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "guarda-frames@wille.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "bridge.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "world": "ISOLATED"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "guard.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "world": "MAIN"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Guarda-Frames"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  }
}