Examine source code of PatoKiller

{
  "name": "PatoKiller",
  "description": "BezpieczniRazem - wspólnie dbamy o nasze bezpieczeństwo w sieci.",
  "version": "0.5.5",
  "manifest_version": 3,
  "permissions": [
    "declarativeNetRequest",
    "storage",
    "alarms",
    "tabs",
    "webRequest"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "PatoKiller",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "blocked.html"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "patokiller@patokiller.pl",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}