Adding manually doesn't work for me, in either Full Disk Access or Accessibility. If I click the + button, or drag Alfred from Finder into the pane in System Prefs > Security & Privacy > Full Disk Access, I get the "Alfred.app will not have full disk access until it is quit" message, but if I quit and relaunch Alfred, nothing happens, and if I close and reopen the pref again, Alfred isn't in the list (in fact, nothing is in the list, Mojave won't let me add anything, apparently?) Has anyone else experienced this after upgrading to Mojave?