diff --git a/parser/html/nsHtml5TreeBuilderCppSupplement.h b/parser/html/nsHtml5TreeBuilderCppSupplement.h
index 526a67c6e..966ff15be 100644
--- a/parser/html/nsHtml5TreeBuilderCppSupplement.h
+++ b/parser/html/nsHtml5TreeBuilderCppSupplement.h
@@ -912,6 +912,9 @@ nsHtml5TreeBuilder::elementPopped(int32_t aNamespace, nsIAtom* aName, nsIContent
   }
   if (aNamespace == kNameSpaceID_SVG) {
     if (aName == nsHtml5Atoms::svg) {
+      if (!scriptingEnabled || mPreventScriptExecution) {
+        return;
+      }
       if (mBuilder) {
         nsHtml5TreeOperation::SvgLoad(static_cast<nsIContent*>(aElement));
         return;