[CentOS] Language support annoyance

Wed Feb 19 21:03:18 UTC 2014
m.roth at 5-cent.us <m.roth at 5-cent.us>

I've got a user that wants Japanese language support in firefox... our
*stock* CentOS firefox, 24.3. I've yum installed i18, and i10, and no joy.
Looked at firefox addons, and there's one, 27.0.

Won't install, "not compatible". Neither is either 24.0, or 25.0.

Anyone have a link to a compatible version?