Install libnss3-dbg by entering the following commands in the terminal:
sudo apt update sudo apt install libnss3-dbg
Description:
Debugging symbols for the Network Security Service libraries
This is a set of libraries designed to support cross-platform development of security-enabled client and server applications. It can support SSLv2 and v4, TLS, PKCS #5, #7, #11, #12, S/MIME, X.509 v3 certificates and other security standards. . This package provides the debugging symbols for the library.
Homepage: http://www.mozilla.org/projects/security/pki/nss/
Version: 2:3.35-2ubuntu2
Section: debug