Examine source code of SNAILPLAY

{
  "background": {
    "page": "bg.html"
  },
  "browser_action": {
    "default_icon": "resources/off.png",
    "default_title": "Snailnotify twitch!"
  },
  "icons": {
    "48": "resources/icons/48.png",
    "64": "resources/icons/64.png",
    "128": "resources/icons/128.png",
    "256": "resources/icons/256.png"
  },
  "manifest_version": 2,
  "name": "SNAILPLAY",
  "description": "SNAILPLAY - расширение для браузера, которое поможет узнать вам: идет ли стрим Snailkick'a или нет.",
  "version": "1.4.1resigned1",
  "web_accessible_resources": [
    "resources/test.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3d7ab6d0-ec88-41a3-a12d-88a34da07c3d}"
    }
  }
}