Developer website: Xmarks, Inc.
Xmarks for Safari is a free add-on for your browser that synchronizes and backs up your bookmarks across multiple computers and more. Xmarks helps you find the best sites on the Web based on what millions of people are bookmarking.
Backup and Sync
Automatically backup and sync your bookmarks after every change. Sync with your iPhone too!
Visit my.xmarks.com to access your bookmarks online.
- OS X 10.6 or later