http://support.mozilla.com/en-US/kb/how-do-i-use-bookmarks

You can usually find the imported IE Favorites in a folder ("From Internet Explorer") at the bottom of the Bookmarks Menu folder (Bookmarks > Show All Bookmarks). If you can't find them there then export the Favorites in IE to an HTML file and import that file in the Firefox Bookmarks Manager.<br /> That way you also preserve any sorting that you may have done in IE with the Favorites. * Export the favorites in IE to an HTML file (bookmarks.html): File > Import and Export * Import the HTML file in Firefox: Bookmarks > Show All Bookmarks > Import & Backup > Import HTML: From File See also: * http://kb.mozillazine.org/Import_bookmarks ("Import from another browser" and "Import from file")