diff --git a/modules/libpr0n/src/imgRequest.cpp b/modules/libpr0n/src/imgRequest.cpp
index 9f1fb3d11bc5..8f5318926744 100644
--- a/modules/libpr0n/src/imgRequest.cpp
+++ b/modules/libpr0n/src/imgRequest.cpp
@@ -291,7 +291,9 @@ void imgRequest::Cancel(nsresult aStatus)
   if (!(mImageStatus & imgIRequest::STATUS_LOAD_PARTIAL))
     mImageStatus |= imgIRequest::STATUS_ERROR;
 
-  RemoveFromCache();
+  if (aStatus != NS_IMAGELIB_ERROR_NO_DECODER) {
+    RemoveFromCache();
+  }
 
   if (mRequest && mLoading)
     mRequest->Cancel(aStatus);