A recent news item provides a bit of information from the Egyptair CVR.
It's in French, and partly behind a paywall:
Crash d'Egyptair: un pilote a tenté d'éteindre l'incendie
An English article based on this is here:
EgyptAir pilot tried to put out fire on board plane, black box shows | Africa | News | The Independent
The report only indicates that one of the pilots was fighting a cockpit fire.