Examine source code of NightKomet AdBlocker

{
  "manifest_version": 2,
  "name": "NightKomet AdBlocker",
  "version": "2.1",
  "description": "Блокировщик рекламы от NightKomet",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "NightKomet AdBlocker",
    "default_icon": "icon.jpg"
  },
  "icons": {
    "48": "icon.jpg",
    "96": "icon.jpg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "nightkomet-adblocker@nightkomet",
      "strict_min_version": "58.0"
    }
  }
}