Maintainers for libfbclient2 are Damyan Ivanov <dmn@debian.org>.
You may want to refer to the following packages that are part of the same source: firebird-dev, firebird-utils, firebird4.0-common, firebird4.0-common-doc, firebird4.0-doc, firebird4.0-examples, firebird4.0-server, firebird4.0-server-core, firebird4.0-utils, libib-util.
You might like to refer to the libfbclient2 package page, to the Package Tracking System, or to the source package src:firebird4.0's bug page.
If you find a bug not listed here, please report it.