The program did not end. It crashed.

bp-833e9cce-9ce1-4b0b-88e2-317690200904 Signature: RtlpFreeHeapInternal | RtlFreeHeap | usrdniecertstore.dll | CloseStore

Crash Reason EXCEPTION_ACCESS_VIOLATION_READ

UsrDNIeCertStore.dll = Instalable módulo criptográfico DNIe or UsrDNIeCertStore by Dirección General de Policía.

SysHook.dll = Label Printer Application Fa-950 = Casio Computer Co

Make sure all program files are up to date.

Signature:

• Firefox 80.0 Crash Report [@ RtlpFreeHeapInternal | RtlFreeHeap | usrdniecertstore.dll | CloseStore ]

The usrdniecertstore.dll is present in the crashing thread, so you need to check the software that adds it and possibly disable this application for Firefox or uninstall it. You can contact its developers for support.

• https://www.google.com/search?sa=N&num=100&q=UsrDNIeCertStore.dll
• https://en.wikipedia.org/wiki/Royal_Mint_(Spain)

This looks like an application that tries to add a certificate to Firefox if I look at the 'CertStore' part of the name.