Install firebird3.0-doc by entering the following commands in the terminal:
sudo apt update sudo apt install firebird3.0-doc
Description:
Documentation files for firebird database version 3.0
Various documents for firebird 3.0. These include the release notes, what's new in firebird 3.0, quick start guide, upgrade guide, list of ISQL enhancements etc.
Homepage: http://firebirdsql.org/
Version: 3.0.2.32703.ds4-11ubuntu2
Section: universe/doc