libfm-gtk-data software package provides 1.2.3-1, 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 libfm-gtk-data
libfm-gtk-data is installed in your system.
Make ensure the libfm-gtk-data package were installed using the commands given below,
$ sudo dpkg-query -l | grep libfm-gtk-data *
You will get with libfm-gtk-data package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Miscellaneous |
| Package | libfm-gtk-data |
| Version | 1.2.3-1 |
| Description | 1.2.3-1 |
| Sub Section | Misc |