Shoutbox

There's an HTML file in your profile folder with all the bookmarks in it, not sure if IE can import them though.

Go to Start > Run and type:
"%APPDATA%\Mozilla\Firefox\Profiles\"

Then select the profile folder currently in use (possibly the only one there). If you don't know which one is in use you can run firefox with the -profilemanager switch to check.

Inside your profile folder there's a file called "bookmarks.html", and that's all the bookmarks.

I doubt that IE will be able to import this file though.