Note: this seems somewhat difficult to reproduce. I've purged unity-webapps-youtube package, removed it from the allowed-domains list using dconf-editor, and tried this again. When I go back again, it's installing both steps (package and integration) at the youtube homepage and the youtube icon is showing up in the launcher.
Note: this seems somewhat difficult to reproduce. I've purged unity-webapps- youtube package, removed it from the allowed-domains list using dconf-editor, and tried this again. When I go back again, it's installing both steps (package and integration) at the youtube homepage and the youtube icon is showing up in the launcher.