Examine source code of Amazon Quick Preview

{
  "manifest_version": 3,
  "name": "Amazon Quick Preview",
  "description": "Click a product image in Amazon search results to preview its gallery, price and options without leaving the page.",
  "version": "0.1.1",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "storage"
  ],
  "action": {
    "default_icon": {
      "16": "icon/16.png",
      "32": "icon/32.png",
      "48": "icon/48.png",
      "128": "icon/128.png"
    },
    "default_title": "Amazon Quick Preview",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "amazon-quick-preview@aliok.dev",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.amazon.ae/*",
        "*://*.amazon.ca/*",
        "*://*.amazon.co.jp/*",
        "*://*.amazon.co.uk/*",
        "*://*.amazon.com.au/*",
        "*://*.amazon.com.be/*",
        "*://*.amazon.com.br/*",
        "*://*.amazon.com.mx/*",
        "*://*.amazon.com.tr/*",
        "*://*.amazon.com/*",
        "*://*.amazon.de/*",
        "*://*.amazon.eg/*",
        "*://*.amazon.es/*",
        "*://*.amazon.fr/*",
        "*://*.amazon.in/*",
        "*://*.amazon.it/*",
        "*://*.amazon.nl/*",
        "*://*.amazon.pl/*",
        "*://*.amazon.sa/*",
        "*://*.amazon.se/*",
        "*://*.amazon.sg/*"
      ],
      "run_at": "document_idle",
      "js": [
        "content-scripts/amazon.js"
      ]
    }
  ]
}