The 4Sync application does not feature a bookmark synchronization option. This means that you will have to export the bookmarks manually from your favorite browser and then upload the file into one of the 4Sync folders. This is the only way to do it or if you have a Chrome or Firefox browser, you can use the built-in synchronization features to keep your bookmarks synced across all your devices. You can contact the company to ask them about future features of new releases.