Examine source code of kinopoisk-skip

{
  "manifest_version": 2,
  "name": "kinopoisk-skip",
  "version": "0.0.1",
  "permissions": [],
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "web_accessible_resources": [],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "dorofienko@gmail.com",
      "strict_min_version": "79.0",
      "data_collection_permissions": {
        "storage": {
          "description": "Stores user preferences locally.",
          "required": true,
          "dataTypes": [
            "Local storage of user preferences"
          ]
        },
        "websiteContent": {
          "description": "Reads content from specified websites.",
          "required": false,
          "dataTypes": [
            "Text content from websites"
          ]
        },
        "required": [
          "none"
        ]
      }
    }
  }
}