How do you save Firefox bookmarks and preferences?

Due to multiple reasons, I have to wipe my hard drive clean and reinstall my operating system (windows XP) I am wondering if anyone knows a fast and easy way to save all of my preferences in firefox.
i.e. (no pun intended) bookmarks, themes, plug-in’s, ad-on’s etc. I’ve done it before, but it was all manual, literally writing out every URL in my bookmarks list. Very tedious work, there has got to be an easier way! Thanks so much