diff --git a/docshell/base/nsDocShell.cpp b/docshell/base/nsDocShell.cpp
index 97a0fb63a816..92d97f67706e 100644
--- a/docshell/base/nsDocShell.cpp
+++ b/docshell/base/nsDocShell.cpp
@@ -3685,6 +3685,9 @@ NS_IMETHODIMP
 nsDocShell::DisplayLoadError(nsresult aError, nsIURI* aURI,
                              const char16_t* aURL, nsIChannel* aFailedChannel,
                              bool* aDisplayedErrorPage) {
+  MOZ_LOG(gDocShellLeakLog, LogLevel::Debug,
+          ("DOCSHELL %p DisplayLoadError %s\n", this,
+           aURI ? aURI->GetSpecOrDefault().get() : ""));
   // If we have a cross-process parent document, we must notify it that we no
   // longer block its load event.  This is necessary for OOP sub-documents
   // because error documents do not result in a call to
@@ -6220,6 +6223,9 @@ nsDocShell::OnContentBlockingEvent(nsIWebProgress* aWebProgress,
 
 nsresult nsDocShell::EndPageLoad(nsIWebProgress* aProgress,
                                  nsIChannel* aChannel, nsresult aStatus) {
+  MOZ_LOG(gDocShellLeakLog, LogLevel::Debug,
+          ("DOCSHELL %p EndPageLoad status: %" PRIx32 "\n", this,
+           static_cast<uint32_t>(aStatus)));
   if (!aChannel) {
     return NS_ERROR_NULL_POINTER;
   }
@@ -6564,6 +6570,7 @@ nsresult nsDocShell::EndPageLoad(nsIWebProgress* aProgress,
          aStatus == NS_ERROR_PROXY_CONNECTION_REFUSED ||
          aStatus == NS_ERROR_PROXY_AUTHENTICATION_FAILED ||
          aStatus == NS_ERROR_PROXY_TOO_MANY_REQUESTS ||
+         aStatus == NS_ERROR_MALFORMED_URI ||
          aStatus == NS_ERROR_BLOCKED_BY_POLICY) &&
         (isTopFrame || UseErrorPages())) {
       DisplayLoadError(aStatus, url, nullptr, aChannel);