Examine source code of Emoji Bookmark Manager

{
  "manifest_version": 2,
  "name": "Emoji Bookmark Manager",
  "version": "1.0",
  "description": "Organize and manage your bookmarks with emojis.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "permissions": [
    "bookmarks"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2e399262-9112-4979-bf3e-c13221f8844d}"
    }
  }
}