Examine source code of BetaSeries

{
  "manifest_version": 3,
  "name": "__MSG_name_extension__",
  "version": "2.3.3",
  "description": "__MSG_description_extension__",
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "default_locale": "fr",
  "action": {},
  "permissions": [
    "cookies",
    "tabs",
    "activeTab",
    "storage",
    "alarms",
    "scripting"
  ],
  "icons": {
    "16": "src/images/16.png",
    "32": "src/images/32.png",
    "48": "src/images/48.png",
    "96": "src/images/96.png",
    "128": "src/images/128.png"
  },
  "host_permissions": [
    "*://*.netflix.com/",
    "*://*.betaseries.com/",
    "*://*.primevideo.com/"
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "*://*.betaseries.com/*",
        "*://*.netflix.com/*",
        "*://*.primevideo.com/*"
      ],
      "resources": [
        "notif.js",
        "contentNetflix.js",
        "functionNetflix.js",
        "notif.html",
        "notifContainerRemove.js",
        "notifContainer.js",
        "src/images/*",
        "logo.svg"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "128.0",
      "id": "{83ea81a0-e81d-43c0-bfdf-9be315e5dcdf}"
    }
  }
}