Examine source code of KinoKnopki

{
  "manifest_version": 2,
  "name": "KinoKnopki",
  "description": "Добавляет на сайты о кино кнопки для поиска на торрентах.",
  "version": "0.2.0",
  "applications": {
    "gecko": {
      "id": "kinoknopki@ris58h"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.kinopoisk.ru/film/*",
        "https://www.kinopoisk.ru/series/*"
      ],
      "js": [
        "core.js",
        "kinopoisk.js"
      ]
    },
    {
      "matches": [
        "https://www.imdb.com/title/*"
      ],
      "js": [
        "core.js",
        "imdb.js"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "web_accessible_resources": [
    "icons/icon.svg"
  ]
}