Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Pearson James F
2. Date of Event Requiring Statement (Month/Day/Year)
06/22/2005
3. Issuer Name and Ticker or Trading Symbol
FIRSTENERGY CORP [FE]
(Last)
(First)
(Middle)
76 SOUTH MAIN STREET
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Treasurer
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

AKRON, OH 44308
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 3,824.6484
I
By Savings Plan
Common Stock 1,200
I
By Mother (Jointly)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Options 11/22/2004 11/20/2010 Common Stock 2,000 $ 27.75 D  
Stock Options 05/16/2005 05/16/2011 Common Stock 6,000 $ 29.5 D  
Stock Options 03/01/2004(1) 03/01/2013 Common Stock 6,975 $ 29.71 D  
Stock Options 04/01/2003(2) 04/01/2012 Common Stock 2,500 $ 34.45 D  
Stock Options 03/01/2005(3) 03/01/2014 Common Stock 8,000 $ 38.76 D  
RSUP1 03/01/2008 03/01/2008 Common Stock 670.5 (5) $ 1 (4) D  
RSUD2 03/01/2010 03/01/2010 Common Stock 483 $ 1 (4) D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Pearson James F
76 SOUTH MAIN STREET
AKRON, OH 44308
      Treasurer  

Signatures

David W. Whitehead, POA 06/29/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) Stock Option Grant 17, awarded on March 3, 2003 to certain individuals, vests in 25% increments. The first 25% became vested on March 1, 2004, and the next 25% vested on 3/1/2005. Currently 50% of this grant is now vested. The grant price is $29.71 and the options expire March 1, 2013.
(2) Stock Option Grant 14, awarded on April 1, 2002 to certain individuals, vests in 25% increments. The first 25% became vested on April 1, 2003, the next 25% vested on 4/1/2004, the next 25% vested on April 1, 2005. Currently 75% of this grant is now vested. The grant price is $34.45 and the options expire April 1, 2012.
(3) Stock Option Grant 18, awarded on March 1, 2004 to certain individuals, vests in 25% increments. The first 25% became vested on March 1, 2005, and are now exercisable. The grant price is $38.76 and the options expire March 1, 2014.
(4) 1 for 1
(5) The performance based restricted stock units, which were granted March 1, 2005, will earn dividends. The reported number of units reflects 75% of the total amount of units granted, and is the amount the employee is guaranteed to realize. The actual number realized could be 25% higher or 25% lower than the total amount of units granted.

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