The Foxmarks Bookmark Synchronizer is a cool Firefox extension I recently discovered.

By uploading your bookmarks to your FTP server or using Foxmarks.com it let your bookmarks to be synchronized between all your different Firefox installs you have on multiple computers.

This is really useful if you, as me, use different operating systems or different personal computers and you use Firefox as browser on every system.

Then keep your bookmarks synchronized by hand might be a nightmare.

With this extension synchronize your bookmarks will be easy and fast.