Examine source code of Nissely Capture

{
  "manifest_version": 3,
  "name": "Nissely Capture",
  "version": "1.1.0",
  "description": "Save products to your Nissely wish lists from any store.",
  "icons": {
    "16": "icons/icon-base-16.png",
    "32": "icons/icon-base-32.png",
    "48": "icons/icon-base-48.png",
    "128": "icons/icon-base-128.png"
  },
  "action": {
    "default_popup": "src/popup/index.html",
    "default_icon": {
      "16": "icons/icon-base-16.png",
      "32": "icons/icon-base-32.png",
      "48": "icons/icon-base-48.png"
    }
  },
  "background": {
    "scripts": [
      "background/firefox.js"
    ],
    "type": "module"
  },
  "permissions": [
    "tabs",
    "activeTab",
    "storage",
    "scripting"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/content.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://nissely.com/*",
        "https://*.nissely.com/*"
      ],
      "js": [
        "content/nissely.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "capture@nissely.com",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ],
        "description": "Nissely Capture only stores the product details you explicitly add to a list and never sells or shares browsing history. Review https://nissely.com/privacy for our full privacy policy.",
        "url": "https://nissely.com/privacy"
      }
    }
  },
  "host_permissions": [
    "<all_urls>",
    "https://nissely.com/*",
    "https://*.nissely.com/*"
  ]
}