Here's an idea.
- Export your bookmarks from your browser.
- Import them into AI
- Ask AI create a new structure for your bookmarks. Organize them into folders. Etc.
- Copy paste the output and create a new bookmark document.
- Upload them to your browser and voila!!!
I just did this today and it worked marvelously.
Do let me know if you try it yourself and how it turns out for you. :)