Examine source code of (Dé)codeur de morse

{
  "manifest_version": 2,
  "name": "Morse décodeur",
  "version": "2.0",
  "description": "Ajoute une icone pour décoder le morse séléctionner.",
  "icons": {
    "48": "icons/icon-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{643f1fe2-28ee-4ade-b8f7-c691912b1714}"
    }
  }
}