Examine source code of ssKinopoisk

{
  "description": "Подставляет две буквы 'ss' к 'kinopoisk.ru' для быстрого перехода на страницу с фильмом",
  "manifest_version": 2,
  "name": "ssKinopoisk",
  "version": "0.5",
  "homepage_url": "https://github.com/mdn/webextensions-examples/tree/master/borderify",
  "icons": {
    "48": "icons/borderr-48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "86.0",
      "id": "naikdij88@gmail.com"
    },
    "gecko_android": {
      "strict_min_version": "120.0"
    }
  },
  "permissions": [
    "activeTab",
    "tabs",
    "webRequest",
    "webRequestBlocking"
  ],
  "browser_action": {
    "default_icon": "icons/borderr-48.png",
    "default_title": "ssKinopoisk"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}