Examine source code of GB Product Helper

{
  "manifest_version": 3,
  "name": "GB Product Helper",
  "version": "2.0",
  "description": "Add products to a Glitterbazaar database.",
  "homepage_url": "https://code.macver.org/Bog/GB-Product-Helper",
  "icons": {
    "48": "icons/glitterbazaar.svg"
  },
  "permissions": [
    "storage",
    "scripting",
    "activeTab",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_scripts/content_grabber.js"
      ],
      "run_at": "document_start"
    }
  ],
  "action": {
    "default_icon": "icons/glitterbazaar.svg",
    "default_title": "GB Product Helper",
    "default_popup": "popup/main.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "gb-product-helper@macver.org",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}