I believe that to hint firefox into testing one has to remove this packages from it (they do not longer exist in unstable). They are obsolete translations that block it.
mozilla-firefox-locale-af-za, mozilla-firefox-locale-ar, mozilla-firefox-locale-ast-es, mozilla-firefox-locale-el, mozilla-firefox-locale-it, mozilla-firefox-locale-ja, mozilla-firefox-locale-pt-pt, mozilla-firefox-locale-sq-al, mozilla-firefox-locale-tr, mozilla-firefox-theme-rtlclassic Moreover it must go in together with all the packages that come from the source pacakage mozilla-firefox-locale-all, namely mozilla-firefox-locale-cs-cz, mozilla-firefox-locale-da-dk, mozilla-firefox-locale-de-de, mozilla-firefox-locale-en-gb, mozilla-firefox-locale-es-ar, mozilla-firefox-locale-es-es, mozilla-firefox-locale-fi-fi, mozilla-firefox-locale-fr-fr, mozilla-firefox-locale-ga-ie, mozilla-firefox-locale-gu-in, mozilla-firefox-locale-he-il, mozilla-firefox-locale-hu-hu, mozilla-firefox-locale-ko, mozilla-firefox-locale-mk-mk, mozilla-firefox-locale-nl-nl, mozilla-firefox-locale-pa-in, mozilla-firefox-locale-pl-pl, mozilla-firefox-locale-pt-br, mozilla-firefox-locale-ro-ro, mozilla-firefox-locale-ru-ru, mozilla-firefox-locale-sl-si, mozilla-firefox-locale-sv-se, mozilla-firefox-locale-tr-tr, mozilla-firefox-locale-zh-cn, mozilla-firefox-locale-zh-tw This was obscured by a RC bug on firefox that was downgraded recently Best regards, Quim -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]