I forgot my firmware password

How to set a firmware password on your Mac - Apple Support

"If you forgot your firmware password

If you can't remember your firmware password or passcode, schedule an in-person service appointment with an Apple Store or Apple Authorized Service Provider. Bring your Mac to the appointment, and bring your original receipt or invoice as proof of purchase."

Well then you are out of luck. The firmware password is there to discourage thieves from stealing computers then selling them to someone looking for a good deal. If the firmware password could be changed or bypassed then there would not be any purpose or value to setting the firmware password would there?