Profiles outside Firefox's list (MyFox 1.4.0): made, imported, renamed and deleted with Firefox open; profile rename; profiles-new, profiles-rename
Empty placeholder profiles: only with --all, marked; placeholder in list --json (MyFox 1.3.4)
Deleting a profile from about:myfox (MyFox 1.3.1): profiles-remove, profile remove <ID> -y with MyFox's Firefox open
Profiles: moving, naming, opening after import, the matching theme, importing from about:myfox; integration: profiles-import, account and moved
Profiles: several MyFox profiles, importing another Firefox's profile and the myfox profile commands; install flags --import, --sync, --allow-downgrade