Is there a way I can transfer my favorites in Firefox from one computer to another?

The bookmarks folder is stored (on Windows) at C:\Documents and Settings\<username>\Application Data\Mozilla\Firefox\Profiles\<profile name>\bookmarks.html. Just copy that file to the same location on the other computer.

Note that Application Data is an invisible folder.

How do I get at the file then?

EDIT: Nevermind, I got it, thanks!

EDIT; The Sequel: Nevermind, I didnt get it. I did what you said, but the bookmarks when I open Firefox are the same as they were before.

EDIT; The Last Stand: Nevermind, I did get it, I just had to import it through firefox. Der. Im dumb. Anyway, thanks again!