$ sudo apt-get remove freefoam 

Uninstall freefoam including dependent package

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

$ sudo apt-get remove --auto-remove freefoam 

Use Purging freefoam

If you use with purge options to freefoam package all the configuration and dependent packages will be removed.

$ sudo apt-get purge freefoam 

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 freefoam 

See Also,