Lost folder in Firefox 1.0

I fired up Firefox 1.0 (running on SuSE 9.0 Pro) today to find a folder missing in the bookmark manager. I manually opened all the other folders and can't find it. The "search" function" looks for bookmarks but not folders. The bookmarks are still "there" because, when I do a search on the name of a bookmark that I know was in the folder, I am able to find it. I've been trying to trace back and see where the folder is "hiding" but have had no luck. I'd appreciate a tip. TIA Kelly Morris