Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
NAVIN THOMAS C
  2. Issuer Name and Ticker or Trading Symbol
FIRSTENERGY CORP [FE]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Treasurer
(Last)
(First)
(Middle)
76 SOUTH MAIN STREET
3. Date of Earliest Transaction (Month/Day/Year)
02/25/2005
(Street)

AKRON, OH 44308
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 02/25/2005   A   1,768.456 (1) A $ 39.535 2,435.95 D  
Common Stock 02/25/2005   D   1,768.456 (1) D $ 39.535 667.494 D  
Common Stock               3,434.4847 I By Savings Plan
Common Stock               20.933 I By Laura Loshing Navin (wife)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Options (Right to buy) $ 27.75             11/22/2004 11/22/2010 Common Stock 4,000   4,000 D  
Stock Options (Right to buy) $ 29.5             05/16/2005 05/16/2011 Common Stock 10,000   10,000 D  
Stock Options (Right to buy) $ 29.71             03/01/2004 03/01/2013 Common Stock 12,500   12,500 D  
Stock Options (Right to buy) $ 34.45             04/01/2003 04/01/2012 Common Stock 12,000   12,000 D  
Stock Options (Right to buy) $ 38.76             03/01/2005 03/01/2014 Common Stock 10,600   10,600 D  
Phantom 3/02D $ 1             03/01/2002 03/01/2005 Common Stock 995.992   995.992 D  
Phantom / Retirement $ 1               (2)   (2) Common Stock 1,286.384   1,286.384 D  
Phantom 3/03D $ 1             03/01/2003 03/01/2006 Common Stock 3,605.761   3,605.761 D  
Phantom 3/05D $ 1 (3) 02/25/2005   A   2,122.147 (4)   02/25/2005 03/01/2008 Common Stock 2,122.147 $ 39.535 2,122.147 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
NAVIN THOMAS C
76 SOUTH MAIN STREET
AKRON, OH 44308
      Treasurer  

Signatures

 David Whitehead, POA   02/28/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) These performances shares paid out in cash, per the vesting and payout date approved by the Compensation Committee. The performance shares were not required to be reported at date of grant because the vesting is based in part on factors other than stock price.
(2) This transaction reflects the extension and vesting of phantom stock to "retirement" or " other termination of employment" under arrangements approved by the Compensation Committee.
(3) 1 for 1
(4) 1,768.456 shares are vested (i.e. non-forfeited). 353.6912 shares become vested (i.e. non-forfeited) on 3/1/2008.

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