Examine source code of Buy Nothing

{
  "manifest_version": 3,
  "name": "Buy Nothing",
  "version": "1.1",
  "description": "Désamorce vos paniers compulsifs en tâche de fond.",
  "browser_specific_settings": {
    "gecko": {
      "id": "buy-nothing@buynothingapp",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs"
  ],
  "host_permissions": [
    "https://*.amazon.fr/*",
    "https://*.replit.app/*",
    "https://*.replit.dev/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.amazon.fr/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}