I am running Vista and using Firefox. I had to reinstall Firefox because of hanging issues with webpages. When I got back up and running in Firefox I noticed all my bookmarks had disappeared. Fortunately I was able to import them from Internet Explorer but noticed that when it was completed all the bookmarks were in a long list. Previously I had them grouped in folders. How can I save bookmarks in the future where they stay in their correct folders so when I import or export they are where they should be?