diff --git a/toolkit/mozapps/installer/windows/nsis/locales.nsi b/toolkit/mozapps/installer/windows/nsis/locales.nsi
index 51ffb2855ac..5f6f537ffc2 100755
--- a/toolkit/mozapps/installer/windows/nsis/locales.nsi
+++ b/toolkit/mozapps/installer/windows/nsis/locales.nsi
@@ -45,11 +45,19 @@
 ; Hebrew
 !define he_rtl
 
+; Japanese
+!define ja_font  "ＭＳ Ｐゴシック"
+!define ja_size  "9"
+
+;Korean
+;define ko_font  "굴림"
+;define ko_size  "9"
+
 ; Chinese Simplified, China
-!define zh-CN_font  "ËÎÌå"
+!define zh-CN_font  "宋体"
 !define zh-CN_size  "9"
 
 ; Chinese Traditional, Taiwan
-!define zh-TW_font  "·s²Ó©úÅé"
+!define zh-TW_font  "新細明體"
 !define zh-TW_size  "9"