diff --git a/browser/locales/all-locales b/browser/locales/all-locales
index b966668c5e2..b5df631de88 100644
--- a/browser/locales/all-locales
+++ b/browser/locales/all-locales
@@ -1,3 +1,6 @@
-cs-CZ
+cs
+hu
 nb-NO
+nl-NL
 pl
+ru
diff --git a/toolkit/locales/all-locales b/toolkit/locales/all-locales
index 7f6caf3512c..b5df631de88 100644
--- a/toolkit/locales/all-locales
+++ b/toolkit/locales/all-locales
@@ -1,30 +1,6 @@
-ast-ES
-ca-AD
-cs-CZ
-da-DK
-de-DE
-el-GR
-en-GB
-es-AR
-es-ES
-fi-FI
-fr-FR
-ga-IE
-he-IL
-hu-HU
-it-IT
-ko-KR
-ja-JP
-ja-JPM
+cs
+hu
 nb-NO
 nl-NL
 pl
-pt-BR
-ro-RO
-ru-RU
-sl-SI
-sq-AL
-sv-SE
-tr-TR
-zh-CN
-zh-TW
+ru