diff --git a/mozilla/l10n/langpacks/en-DE/chrome/en-DE/messenger/locale/am-server-top.dtd b/mozilla/l10n/langpacks/en-DE/chrome/en-DE/messenger/locale/am-server-top.dtd
index 567c51eada6..8481b4a96b9 100644
--- a/mozilla/l10n/langpacks/en-DE/chrome/en-DE/messenger/locale/am-server-top.dtd
+++ b/mozilla/l10n/langpacks/en-DE/chrome/en-DE/messenger/locale/am-server-top.dtd
@@ -44,4 +44,4 @@
 <!ENTITY advancedButton.label "Advanced...">
 
 <!ENTITY maxMessageSizePrefix.label "Limit message download to">
-<!ENTITY maxMessageSizePostfix.label "kB per message">
+<!ENTITY maxMessageSizePostfix.label "KB per message">
diff --git a/mozilla/l10n/langpacks/en-DE/chrome/en-DE/messenger/locale/pref-diskspace.dtd b/mozilla/l10n/langpacks/en-DE/chrome/en-DE/messenger/locale/pref-diskspace.dtd
index e9e552b11d7..579abba7d59 100644
--- a/mozilla/l10n/langpacks/en-DE/chrome/en-DE/messenger/locale/pref-diskspace.dtd
+++ b/mozilla/l10n/langpacks/en-DE/chrome/en-DE/messenger/locale/pref-diskspace.dtd
@@ -28,7 +28,7 @@ Rights Reserved.
 <!-- LOCALIZATION NOTE autoCompact.label: This string is followed by a number, then by kb.label -->
 <!ENTITY autoCompact.label              "Automatically compact folders when it will save over">
 <!ENTITY autoCompact.accesskey          "c">
-<!ENTITY kb.label                       "kB">
+<!ENTITY kb.label                       "KB">
 <!ENTITY newgroupMsgOnly.label          "Newsgroup Messages Only">
 <!ENTITY whenToClean.label              "When it's time to clean up messages:">
 <!-- LOCALIZATION NOTE keepMsgs.label: This string is followed by a number, then by days.label -->
diff --git a/mozilla/l10n/langpacks/en-GB/chrome/en-GB/messenger/locale/am-server-top.dtd b/mozilla/l10n/langpacks/en-GB/chrome/en-GB/messenger/locale/am-server-top.dtd
index 567c51eada6..8481b4a96b9 100644
--- a/mozilla/l10n/langpacks/en-GB/chrome/en-GB/messenger/locale/am-server-top.dtd
+++ b/mozilla/l10n/langpacks/en-GB/chrome/en-GB/messenger/locale/am-server-top.dtd
@@ -44,4 +44,4 @@
 <!ENTITY advancedButton.label "Advanced...">
 
 <!ENTITY maxMessageSizePrefix.label "Limit message download to">
-<!ENTITY maxMessageSizePostfix.label "kB per message">
+<!ENTITY maxMessageSizePostfix.label "KB per message">
diff --git a/mozilla/l10n/langpacks/en-GB/chrome/en-GB/messenger/locale/pref-diskspace.dtd b/mozilla/l10n/langpacks/en-GB/chrome/en-GB/messenger/locale/pref-diskspace.dtd
index e9e552b11d7..579abba7d59 100644
--- a/mozilla/l10n/langpacks/en-GB/chrome/en-GB/messenger/locale/pref-diskspace.dtd
+++ b/mozilla/l10n/langpacks/en-GB/chrome/en-GB/messenger/locale/pref-diskspace.dtd
@@ -28,7 +28,7 @@ Rights Reserved.
 <!-- LOCALIZATION NOTE autoCompact.label: This string is followed by a number, then by kb.label -->
 <!ENTITY autoCompact.label              "Automatically compact folders when it will save over">
 <!ENTITY autoCompact.accesskey          "c">
-<!ENTITY kb.label                       "kB">
+<!ENTITY kb.label                       "KB">
 <!ENTITY newgroupMsgOnly.label          "Newsgroup Messages Only">
 <!ENTITY whenToClean.label              "When it's time to clean up messages:">
 <!-- LOCALIZATION NOTE keepMsgs.label: This string is followed by a number, then by days.label -->