Examine source code of Kosmopolead Linkedin

{
  "name": "Kosmopolead Plugin",
  "version": "1.9.31",
  "manifest_version": 2,
  "description": "Détecter des informations de contact sur Linkedin",
  "browser_action": {
    "default_icon": "images/logo.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "script/backgroud.js"
    ],
    "persistent": true
  },
  "permissions": [
    "<all_urls>",
    "activeTab",
    "*://*/*",
    "webRequest",
    "webRequestBlocking",
    "file://*/*",
    "http://*/*",
    "https://*/*"
  ],
  "web_accessible_resources": [
    "images/logo.png",
    "images/favicon.ico",
    "images/loader.gif",
    "images/headerTitle.png",
    "images/close.png",
    "images/edit_button.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{40fc6126-e16d-4d97-a842-f9fc7a7a421e}"
    }
  }
}