EXHIBIT 32.1



                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of FirstEnergy Corp. ("Company") on Form
10-Q/A for the period ending June 30, 2003 as filed with the Securities and
Exchange Commission on the date hereof (the "Report"), each undersigned officer
of the Company does hereby certify, pursuant to 18 U.S.C. ss. 1350, as adopted
pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that: to the best of his
knowledge:

         (1)      The Report fully complies with the requirements of section
                  13(a) or 15(d) of the Securities Exchange Act of 1934; and

         (2)      The information contained in the Report fairly presents, in
                  all material respects, the financial condition and results of
                  operations of the Company.



                                               /s/H. Peter Burg
                                        ----------------------------------
                                                  H. Peter Burg
                                              Chief Executive Officer
                                               September 11, 2003



                                             /s/Richard H. Marsh
                                        ----------------------------------
                                                Richard H. Marsh
                                              Chief Financial Officer
                                              September 11, 2003






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