LiveMarks really is a fantastic addon to bring back Live Bookmarks functionality. That said, I've always been a fan of native browsers for their inherent advantages. Never felt the desire to use anything else, unless it has significant usability improvements. Phoenix/Firefox was always that browser for me. I usually suggest people use their native browser (Edge/Safari), and if they want an upgrade, to go to Firefox. With all of these recent debacles, it would be hard for me to not suggest the new Chromium-based Edge to Windows users and crossplatform.
