Examine source code of Bookmark Guard

{
  "manifest_version": 3,
  "name": "Bookmark Guard",
  "version": "1.4",
  "permissions": [
    "bookmarks",
    "storage",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/lock-16.png",
      "32": "icons/lock-32.png",
      "48": "icons/lock-48.png",
      "96": "icons/lock-96.png"
    }
  },
  "icons": {
    "16": "icons/lock-16.png",
    "32": "icons/lock-32.png",
    "48": "icons/lock-48.png",
    "96": "icons/lock-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "bookmark-guard@users.noreply.github.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}