Not Found The requested URL /pub/mozilla.org/firefox/releases/21.0/mac/ja/Firefox 21.0.dmg was not found on this server.

Download from here

• https://www.mozilla.org/en-US/firefox/all/

Did you try to download the Japanese version for Mac before sending me the link? I don't think so!!

IT"S a 404.. and has been since version 20...

filed a bug, so it will be updated soon.

Thanks

Download via this page:

• https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/21.0/mac/ja-JP-mac/

• Bug 872894 - Firefox 21.0 Japanese language file not available

Thanks for actually checking.

FYI Still Broken.