I ' ve finally found out how to restore my keyboard navigation . It 's more complicated than I expected -- and as I expected , it turned out to be a combination of OS X prefs and Firefox settings . The key is in this article on tabbing problems in Firefox ( which , to my amusement , includes notes on setting this in Camino as well ) .

Generate a question about the above context.
Why has the narrator suddenly become so efficient ?
Select from the following.
(I) They discovered pomodoro clocks .;
(II) They discovered time management .;
(III) They discovered computer shortcuts .;
(IV) They discovered time blocking .;