Examine source code of Open Random Bookmarks

{
  "manifest_version": 2,
  "name": "Random Bookmark Opener",
  "version": "1.0",
  "description": "Opens random bookmarks from a selected folder",
  "browser_specific_settings": {
    "gecko": {
      "id": "random-bookmark-opener@noodle",
      "strict_min_version": "91.1.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "bookmarks",
    "storage",
    "contextMenus",
    "tabs"
  ],
  "browser_action": {
    "default_title": "Random Bookmark Opener",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "icons": {
    "48": "icon.png"
  }
}