YoK --> смотри online

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "YoK --> смотри online",
  "version": "4.4.0",
  "author": "mrZ <[email protected]>",
  "description": "расширение для сайта kinopoisk.ru, перейди на страницу фильма и смотри",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "64": "icons/icon64.png",
    "128": "icons/icon128.png",
    "512": "icons/icon512.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.kinopoisk.ru/*",
        "https://kinopoisk.ru/*"
      ],
      "css": [
        "assets/style.css"
      ],
      "js": [
        "contentScript.js"
      ],
      "all_frames": false,
      "run_at": "document_start"
    }
  ],
  "background": {
    "service_worker": "service-worker.js"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/icons/*"
      ],
      "matches": [
        "https://www.kinopoisk.ru/*",
        "https://kinopoisk.ru/*"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "storage"
  ],
  "host_permissions": [
    "https://*.kinopoisk.ru/*"
  ]
}