gnome-session-flashback software package provides GNOME Session Manager - GNOME Flashback session, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gnome-session-flashback
gnome-session-flashback is installed in your system.
Make ensure the gnome-session-flashback package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnome-session-flashback *
You will get with gnome-session-flashback package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | GNOME |
| Package | gnome-session-flashback |
| Version | 1:3.18.2-1ubuntu1 |
| Description | GNOME Session Manager - GNOME Flashback session |
| Sub Section | GNOME |