1 files changed, 3 insertions, 1 deletions
diff --git a/netwerk/streamconv/converters/nsMultiMixedConv.cpp b/netwerk/streamconv/converters/nsMultiMixedConv.cpp
index 54e57e41b4..6b2ec51be4 100644
--- a/netwerk/streamconv/converters/nsMultiMixedConv.cpp
+++ b/netwerk/streamconv/converters/nsMultiMixedConv.cpp
@@ -21,6 +21,7 @@
 #include "mozilla/AutoRestore.h"
 #include "mozilla/Tokenizer.h"
 #include "nsComponentManagerUtils.h"
+#include "mozilla/StaticPrefs_network.h"
 
 using namespace mozilla;
 
@@ -977,7 +978,8 @@ nsresult nsMultiMixedConv::ProcessHeader() {
       nsCOMPtr<nsIHttpChannelInternal> httpInternal =
           do_QueryInterface(mChannel);
       mResponseHeaderValue.CompressWhitespace();
-      if (httpInternal) {
+      if (!StaticPrefs::network_cookie_prevent_set_cookie_from_multipart() &&
+          httpInternal) {
         DebugOnly<nsresult> rv = httpInternal->SetCookie(mResponseHeaderValue);
         MOZ_ASSERT(NS_SUCCEEDED(rv));
       }