http://kikurizsbpb7ar4ozrzogt6nre3j7s7mccqwxeg3jvppyik2aa475lqd.onion/books/qubes-os/page/adding-japanese-language-input-support-to-a-whonix-qube
Configure Fcitx From the start menu, open Fcitx Configuration . Click " + " in the bottom bar Uncheck Only Show Current Language In the search bar, type Mozc (THIS IS CASE SENSITIVE) Select Mozc Click OK The option should now appear in the list under the Input Method tab.