Examine source code of Linkedin Profile Grabber

{
  "applications": {
    "gecko": {
      "id": "plugins@example.com"
    }
  },
  "manifest_version": 2,
  "name": "Linkedin Profile Grabber",
  "description": "This tool facilitates you to download your own Linkedin profile data in a Json Format.",
  "version": "1.6resigned1",
  "background": {
    "persistent": false,
    "scripts": [
      "thirdParty/jquery-2.2.3.min.js",
      "background.js",
      "settings.js",
      "thirdParty/readcomments.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.linkedin.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "Download my Linkedin public profile"
  },
  "permissions": [
    "activeTab",
    "downloads",
    "<all_urls>"
  ],
  "content_security_policy": "script-src 'self' https://ajax.googleapis.com; object-src 'self'",
  "icons": {
    "128": "icon128.png"
  }
}