Patch in Bug 451250 added "notCached.longDesc" in browser/locales/en-US/chrome/overrides/netError.dtd and dom/locales/en-US/chrome/netError.dtd, that contains: "...As a security precuation..." I think it should be "precaution" instead "precuation".
Sorry about the typo. Did you want to provide a patch for the record?
Created attachment 566952 [details] [diff] [review] Patch
Comment on attachment 566952 [details] [diff] [review] Patch I agree that we don't need an entity change for this one, too.
Pushed changeset 64ea9d6d7093 to mozilla-central.
Filed bug 696323 for catching this kind of bug automatically.