How do I install the ubuntu-restricted-extras package? | Ubuntu won’t play my videos | How to Enable Ubuntu 18.04 LTS to Play Videos FilesHome » How do I install the ubuntu-restricted-extras package? | Ubuntu won’t play my videos | How to Enable Ubuntu 18.04 LTS to Play Videos Files Tue-Jul-2019 9ubuntu-restricted-extras packagesudo apt-get install ubuntu-restricted-extrasReboot.