libfbclient2 software package provides Firebird client library, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libfbclient2
libfbclient2 is installed in your system.
Make ensure the libfbclient2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libfbclient2 *
You will get with libfbclient2 package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Libraries |
| Package | libfbclient2 |
| Version | 2.5.3.26778.ds4-5 |
| Description | Firebird client library |
| Sub Section | libs |