Argh, you replied just when I had deleted. Sorry. To anyone wondering my comment was saying that I couldn't find any service comparable to Google's sync last time I tried Firefox. Google's sync effortlessly syncs all machines tied to an account including bookmarks, extensions, and themes.

I figured I'd try out the latest Firefox and see if I can get it working before I definitively make the comment.

Thanks for the tip though. The machines I want to sync between are Windows 7 and Linux though, so no can do.