How to uninstall or remove mozilla-plugin-gnash software package from Ubuntu 14.04 LTS (Trusty Tahr)

You can uninstall or removes an installed mozilla-plugin-gnash package itself from Ubuntu 14.04 LTS (Trusty Tahr) through the terminal,

$ sudo apt-get remove mozilla-plugin-gnash

Uninstall mozilla-plugin-gnash including dependent package

If you would like to remove mozilla-plugin-gnash and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove mozilla-plugin-gnash

Use Purging mozilla-plugin-gnash

If you use with purge options to mozilla-plugin-gnash package all the configuration and dependent packages will be removed.

$ sudo apt-get purge mozilla-plugin-gnash

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove mozilla-plugin-gnash