rhythmbox-mozilla software package provides Rhythmbox Mozilla plugin, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install rhythmbox-mozilla
rhythmbox-mozilla is installed in your system.
Make ensure the rhythmbox-mozilla package were installed using the commands given below,
$ sudo dpkg-query -l | grep rhythmbox-mozilla *
You will get with rhythmbox-mozilla package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Web Software |
| Package | rhythmbox-mozilla |
| Version | 3.0.2-0ubuntu1 |
| Description | Rhythmbox Mozilla plugin |
| Sub Section | Web |