Examine source code of LFI

{
  "manifest_version": 2,
  "version": "1.1.3",
  "name": "LFI",
  "icons": {
    "32": "logo.jpg",
    "64": "logo.jpg",
    "128": "logo.jpg"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "*://www.shodan.io/*"
      ],
      "js": [
        "jquery.min.js",
        "script.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage",
    "<all_urls>",
    "*://localhost/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{50ee4e73-786d-4c3f-9bf4-509f403d15d4}"
    }
  }
}