diff --git a/toolkit/components/prompts/content/tabprompts.xml b/toolkit/components/prompts/content/tabprompts.xml
index cc2096fbeb64..f36b770a9f3c 100644
--- a/toolkit/components/prompts/content/tabprompts.xml
+++ b/toolkit/components/prompts/content/tabprompts.xml
@@ -115,7 +115,6 @@
         <destructor>
         <![CDATA[
             if (this.isLive) {
-                this.Dialog.abortPrompt();
                 this.shutdownPrompt();
             }
         ]]>