No, a fire extinguisher will not get rid of fingerprints. In fact, fire extinguishers, especially powder type ones are used to enhance the fingerprints so that they appear more clearly. This helps in identifying and studying the fingerprint better.
A recent Canadian study published has shown some promising results in the use of dry chemical (powder) fire extinguisher for developing …
Do fire extinguishers remove fingerprints? – Quora
Spraying a dry powder fire extinguisher on fingerprints may preserve them, if the stream is not directed at the fingerprints themselves. The powder will adhere more strongly to fingerprint oils. So, just being near a fire is unlikely to destroy fingerprints although it may degrade them. Being touched by flame will destroy fingerprint evidence.
FINGERPRINTS AT THE FIRE SCENE As a fire investigator working an arson scene, putting the case together usually means assembling circumstantial evidence. Classifying a fire as an "arson" may be proven by eliminating electrical and natural causes of fire, thus concluding human involvement. To proceed with a criminal investigation it is necessary
People Also Searches does fire extinguisher remove fingerprints
EXPLOSION🚨 | What You MUST Know About Fire Extinguishers | How To Clean Up Fire Extinguisher Residue Video Answer