diff --git a/application/palemoon/base/content/tabbrowser.xml b/application/palemoon/base/content/tabbrowser.xml
index b4b9975326..0b471043db 100644
--- a/application/palemoon/base/content/tabbrowser.xml
+++ b/application/palemoon/base/content/tabbrowser.xml
@@ -2860,7 +2860,7 @@
 
       <property name="contentWindowAsCPOW"
                 readonly="true"
-                onget="return this.contentWindow;"/>
+                onget="return this.mCurrentBrowser.contentWindow;"/>
 
       <property name="sessionHistory"
                 onget="return this.mCurrentBrowser.sessionHistory;"