Examine source code of NoShorts

{
  "manifest_version": 2,
  "name": "__MSG_extension_name__",
  "description": "__MSG_extension_description__",
  "version": "2.1.1",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "64": "icons/64.png",
    "128": "icons/128.png"
  },
  "default_locale": "en",
  "permissions": [
    "storage"
  ],
  "options_ui": {
    "page": "index.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "noshorts@rafinha.dev",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "persistent": false,
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "NoShorts",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "run_at": "document_start",
      "css": [
        "content-scripts/youtube.css"
      ],
      "js": [
        "content-scripts/youtube.js"
      ]
    }
  ]
}