diff --git a/toolkit/locales/en-US/chrome/mozapps/extensions/extensions.dtd b/toolkit/locales/en-US/chrome/mozapps/extensions/extensions.dtd
index 76f5570f92..b5086032c1 100644
--- a/toolkit/locales/en-US/chrome/mozapps/extensions/extensions.dtd
+++ b/toolkit/locales/en-US/chrome/mozapps/extensions/extensions.dtd
@@ -24,10 +24,12 @@
 <!ENTITY cmd.back.tooltip                     "Go back one page">
 <!ENTITY cmd.forward.tooltip                  "Go forward one page">
 
+#ifdef MOZ_WEBEXTENSIONS
 <!ENTITY showUnsignedExtensions.button.label  "Some extensions could not be verified">
 <!ENTITY showAllExtensions.button.label       "Show all extensions">
 <!ENTITY debugAddons.label                    "Debug Add-ons">
 <!ENTITY debugAddons.accesskey                "B">
+#endif
 
 <!-- global warnings -->
 <!ENTITY warning.safemode.label                    "All add-ons have been disabled by safe mode.">
@@ -241,6 +243,7 @@
 
 <!ENTITY setting.learnmore "Learn More…">
 
+#ifdef MOZ_WEBEXTENSIONS
 <!ENTITY disabledUnsigned.heading "Some add-ons have been disabled">
 <!-- LOCALIZATION NOTE (disabledUnsigned.description.start, disabledUnsigned.description.findAddonsLink, disabledUnsigned.description.end):
      These entities form a sentence, with
@@ -257,4 +260,5 @@
 <!ENTITY disabledUnsigned.devInfo.end ".">
 
 <!ENTITY pluginDeprecation.description "Missing something? Some plugins are no longer supported by &brandShortName;.">
-<!ENTITY pluginDeprecation.learnMore "Learn More.">
\ No newline at end of file
+<!ENTITY pluginDeprecation.learnMore "Learn More.">
+#endif
diff --git a/toolkit/locales/jar.mn b/toolkit/locales/jar.mn
index 1254047cb1..23b9d72fb5 100644
--- a/toolkit/locales/jar.mn
+++ b/toolkit/locales/jar.mn
@@ -108,7 +108,7 @@
   locale/@AB_CD@/mozapps/downloads/settingsChange.dtd             (%chrome/mozapps/downloads/settingsChange.dtd)
   locale/@AB_CD@/mozapps/downloads/downloads.dtd                  (%chrome/mozapps/downloads/downloads.dtd)
   locale/@AB_CD@/mozapps/downloads/downloads.properties           (%chrome/mozapps/downloads/downloads.properties)
-  locale/@AB_CD@/mozapps/extensions/extensions.dtd                (%chrome/mozapps/extensions/extensions.dtd)
+* locale/@AB_CD@/mozapps/extensions/extensions.dtd                (%chrome/mozapps/extensions/extensions.dtd)
   locale/@AB_CD@/mozapps/extensions/extensions.properties         (%chrome/mozapps/extensions/extensions.properties)
   locale/@AB_CD@/mozapps/extensions/blocklist.dtd                 (%chrome/mozapps/extensions/blocklist.dtd)
   locale/@AB_CD@/mozapps/extensions/about.dtd                     (%chrome/mozapps/extensions/about.dtd)