Examine source code of Minerfox Dashboard - v2

{
  "description": "Minerfox Dashboard",
  "manifest_version": 2,
  "name": "Minerfox Dashboard",
  "version": "1.4",
  "applications": {
    "gecko": {
      "id": "minerfoxdashboardrv2fix@minerfox.me"
    }
  },
  "permissions": [
    "*://*/*",
    "webRequest",
    "storage",
    "cookies"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/page-16.png",
      "32": "icons/page-32.png"
    }
  }
}