Examine source code of XSOO Live Stream

{
  "manifest_version": 2,
  "name": "XSOO Live Stream",
  "version": "1.1.2resigned1",
  "description": "Recevez une notification et ne ratez aucun live sur les chaînes Twitch et Youtube de XSOO",
  "permissions": [
    "tabs",
    "storage",
    "notifications",
    "alarms",
    "https://api.twitch.tv/*",
    "https://www.googleapis.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "assets/icons/x16.png",
    "32": "assets/icons/x32.png",
    "48": "assets/icons/x48.png",
    "128": "assets/icons/x128.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "assets/icons/x16.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{090a7050-d4d7-405d-ae21-0cd50456acc8}"
    }
  }
}