Examine source code of Speed Dial Folders (Free)

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "short_name": "Speed Dial",
  "version": "1.0.12",
  "description": "__MSG_extensionDescription__",
  "author": "NewTab Groups",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "{b7c4f1a2-938e-4f01-a58d-719e24b5c6d3}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "topSites",
    "storage",
    "search",
    "unlimitedStorage",
    "bookmarks"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  }
}