由 Infocatcher （開發者） 發表於 Feb. 23, 2014 · 永久網址

Still works for me, but only for some archives. :(
E.g. works at least for ftp://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/jsshell-win32.zip
I don't know, what is the reason, sorry.