Examine source code of FB Cookie

{
  "name": "FB Cookie",
  "description": "Copy cookie on Facebook with one click",
  "version": "1.3",
  "icons": {
    "16": "images/16.png",
    "48": "images/48.png",
    "128": "images/128.png"
  },
  "browser_action": {
    "default_icon": "images/logo.png",
    "default_popup": "index.html"
  },
  "permissions": [
    "https://*.facebook.com/",
    "cookies"
  ],
  "manifest_version": 2
}