Examine source code of hanounahah

{
  "manifest_version": 2,
  "name": "hanounahah",
  "version": "0.5",
  "description": "Ajoute une icône à la barre d'outil pour une action navigateur. Remplace le mot Hanouna par Hanouna-Bolloré. Version test 0.5. La prochaine version permettra d'activer ou non le remplacement.",
  "homepage_url": "https://cyroul.com/hanouna-plugin",
  "icons": {
    "48": "icons/hanounaico-48.png",
    "96": "icons/hanounaico-96.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/hanounaico-32.png",
    "default_title": "Hanounahaha"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "hanounahah.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cddb844f-8705-4c19-b846-955d39f88b2a}"
    }
  }
}