Hi, as it was discussed in the Nave project mailing list, the message is produced by Firefox, not by the translation, as far as I know. I don't know why you don't get it using the es-ar translation.
What do you mean with "try to do that : rm -fr ~/.mozilla ; firefox "? Does it remove the warning? I'm going to close the bug, as I think it's a normal Firefox message, and it's not related with the es-es translation or package. Regards, César Martínez Izquierdo
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