Snug

Snug is a Chrome extension that moves your bookmarks between browsers exactly as you left them. Export the whole tree or only chosen folders in HTML, JSON, CSV, Markdown, OPML or XBEL. Import shows a preview first, then merges, replaces, or adds everything to a new folder. A replace saves a Safety snapshot, so you can undo it. Auto-export writes scheduled backups to your Downloads folder. Snug works in Chromium browsers and makes no network calls.