adding second language while keeping English as default + are older versions of Firefox available for download (wary of newest due to feedback I've read) 的最新解答https://support.mozilla.org/zh-TW/questions/6645082010-05-05T12:33:26-07:00You can install additional language packs.
See http://kb.mozillazine.org/Language_packs
Firefox 3.6.2010-05-05T12:33:26-07:00cor-elhttps://support.mozilla.org/zh-TW/questions/664508#answer-26982<p>You can install additional language packs.
See <a href="http://kb.mozillazine.org/Language_packs" rel="nofollow">http://kb.mozillazine.org/Language_packs</a>
</p><p>Firefox 3.6.3 Win: <a href="http://releases.mozilla.org/pub/mozilla.org/firefox/releases/3.6.3/win32/xpi/" rel="nofollow">http://releases.mozilla.org/pub/mozilla.org/firefox/releases/3.6.3/win32/xpi/</a>
</p>