Examine source code of Ex2ity V1.1 - x2 ( HxN )

{
  "manifest_version": 2,
  "name": "Ex2ity V1.1 - x2 ( HxN )",
  "description": "Quickly enable/disable Mozilla FireFox extensions",
  "version": "1.1",
  "options_page": "options.html",
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "browser_action": {
    "default_icon": "images/iconbar.png",
    "default_title": "Ex2ity",
    "default_popup": "index.html"
  },
  "background": {
    "scripts": [
      "js/migration.js"
    ],
    "persistent": false
  },
  "permissions": [
    "management",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b33f17a3-d568-4275-93af-183e588bdaf5}"
    }
  }
}