Today new translations were completed at the Babelzilla site. New translations were added for German (de-DE) and Portuguese (pt-BR) and a Russian (ru-RU) translation is also almost finished.
I am waiting with the next release until the extension gets reviewed by Mozilla and can leave the sandbox. For now it is still listed as experimental. I am waiting since June 28th for the review, I hope it will happen any time soon now.