diff --git a/mozilla/xpfe/global/resources/content/bindings/dialog.xml b/mozilla/xpfe/global/resources/content/bindings/dialog.xml
index 731b19f737c..20fab34a32f 100644
--- a/mozilla/xpfe/global/resources/content/bindings/dialog.xml
+++ b/mozilla/xpfe/global/resources/content/bindings/dialog.xml
@@ -21,7 +21,7 @@
                 xbl:inherits="pack=buttonpack,align=buttonalign,dir=buttondir,orient=buttonorient">
         <xul:button dlgtype="extra2" class="dialog-button" hidden="true" label="" xbl:inherits="label=buttonlabelextra2,accesskey=buttonaccesskeyextra2"/>
         <xul:spacer xbl:inherits="flex=spacerflex"/>
-        <xul:button dlgtype="accept" class="dialog-button" xbl:inherits="label=buttonlabelaccept,accesskey=buttonaccesskeyaccept"/>
+        <xul:button dlgtype="accept" class="dialog-button" xbl:inherits="label=buttonlabelaccept,accesskey=buttonaccesskeyaccept,disabled=buttondisabledaccept"/>
         <xul:button dlgtype="extra1" class="dialog-button" hidden="true" label="" xbl:inherits="label=buttonlabelextra1,accesskey=buttonaccesskeyextra1"/>
         <xul:button dlgtype="cancel" class="dialog-button" xbl:inherits="label=buttonlabelcancel,accesskey=buttonaccesskeycancel"/>
         <xul:button dlgtype="help" class="dialog-button" hidden="true" xbl:inherits="label=buttonlabelhelp,accesskey=buttonaccesskeyhelp"/>
diff --git a/mozilla/xpfe/global/resources/content/mac/platformDialog.xml b/mozilla/xpfe/global/resources/content/mac/platformDialog.xml
index 70b467f4262..adc6851285c 100644
--- a/mozilla/xpfe/global/resources/content/mac/platformDialog.xml
+++ b/mozilla/xpfe/global/resources/content/mac/platformDialog.xml
@@ -19,7 +19,7 @@
         <xul:button dlgtype="extra1" class="dialog-button" hidden="true" label="" xbl:inherits="label=buttonlabelextra1,accesskey=buttonaccesskeyextra1"/>
         <xul:spacer flex="1"/>
         <xul:button dlgtype="cancel" class="dialog-button" xbl:inherits="label=buttonlabelcancel,accesskey=buttonaccesskeycancel"/>
-        <xul:button dlgtype="accept" class="dialog-button" xbl:inherits="label=buttonlabelaccept,accesskey=buttonaccesskeyaccept"/>
+        <xul:button dlgtype="accept" class="dialog-button" xbl:inherits="label=buttonlabelaccept,accesskey=buttonaccesskeyaccept,disabled=buttondisabledaccept"/>
       </xul:hbox>
     </content>