Examine source code of Laurot Converter

{
  "name": "Laurot Converter",
  "version": "0.4resigned1",
  "manifest_version": 2,
  "description": "Laurot Marrant ça sonne quand même mieux...",
  "icons": {
    "48": "48.png",
    "128": "128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "js/laurot-converter.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{be93dcd2-3812-4d09-8147-aaecf0a41269}"
    }
  }
}