diff --git a/content/base/src/nsMixedContentBlocker.cpp b/content/base/src/nsMixedContentBlocker.cpp
index 416c495a97c4..193154d920ad 100644
--- a/content/base/src/nsMixedContentBlocker.cpp
+++ b/content/base/src/nsMixedContentBlocker.cpp
@@ -377,7 +377,6 @@ nsMixedContentBlocker::ShouldLoad(uint32_t aContentType,
   if (aContentType == TYPE_SUBDOCUMENT && !rootHasSecureConnection) {
 
     bool httpsParentExists = false;
-    bool chromeParent = false;
 
     nsCOMPtr<nsIDocShellTreeItem> parentTreeItem;
     parentTreeItem = docShell;