Examine source code of GETMORE Cash Tool

{
  "manifest_version": 2,
  "name": "GETMORE CASH-Tool",
  "short_name": "GETMORE",
  "description": "Verpasse nie wieder ein Angebot auf GETMORE",
  "version": "2.0.9",
  "author": "Creative SHOPPING GmbH",
  "icons": {
    "16": "icons/logo_getmore_16x16.png",
    "32": "icons/logo_getmore_32x32.png",
    "48": "icons/logo_getmore_48x48.png",
    "128": "icons/logo_getmore_128x128.png"
  },
  "applications": {
    "gecko": {
      "id": "plugin@getmore.de"
    }
  },
  "background": {
    "scripts": [
      "js/getmore.bg.min.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/logo_getmore_16x16.png",
      "32": "icons/logo_getmore_32x32.png",
      "48": "icons/logo_getmore_48x48.png",
      "128": "icons/logo_getmore_128x128.png"
    },
    "default_title": "GETMORE CASH-Tool",
    "default_popup": "menu.html"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "css": [
        "css/overlay.min.css"
      ],
      "js": [
        "js/getmore.cs.iframe.min.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "icons/*",
    "bar.html"
  ],
  "permissions": [
    "notifications",
    "tabs",
    "webRequest",
    "storage",
    "http://*/*",
    "https://*/*"
  ]
}