Hi! Kitsune [1] is an addon that enables Japanese input in Firefox (and, respectively, IceCat) even when no system IME is installed. It is said to be distributed under GPL v3, although the license text is not included into the package. BTW, “kitsune” means “fox” in Japanese.
Best regards, Dmitri Gabinski [1] http://addons.mozilla.org/en-US/firefox/addon/14082/ -- http://gnuzilla.gnu.org
