diff --git a/modules/libjar/nsJARFactory.cpp b/modules/libjar/nsJARFactory.cpp
index 8189034254c1..6b725426f289 100644
--- a/modules/libjar/nsJARFactory.cpp
+++ b/modules/libjar/nsJARFactory.cpp
@@ -51,13 +51,10 @@
 #include "nsCOMPtr.h"
 #include "mozilla/ModuleUtils.h"
 #include "nsIJARFactory.h"
-#include "nsRecyclingAllocator.h"
 #include "nsJARProtocolHandler.h"
 #include "nsJARURI.h"
 #include "nsJAR.h"
 
-extern nsRecyclingAllocator *gZlibAllocator;
-
 NS_GENERIC_FACTORY_CONSTRUCTOR(nsJAR)
 NS_GENERIC_FACTORY_CONSTRUCTOR(nsZipReaderCache)
 NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsJARProtocolHandler,
@@ -87,8 +84,6 @@ static const mozilla::Module::ContractIDEntry kJARContracts[] = {
 // Jar module shutdown hook
 static void nsJarShutdown()
 {
-    // Release cached buffers from zlib allocator
-    delete gZlibAllocator;
     NS_IF_RELEASE(gJarHandler);
 }
 
diff --git a/modules/libjar/nsZipArchive.cpp b/modules/libjar/nsZipArchive.cpp
index 399227d75ce7..2e4ce57c2853 100644
--- a/modules/libjar/nsZipArchive.cpp
+++ b/modules/libjar/nsZipArchive.cpp
@@ -52,7 +52,6 @@
 #define READTYPE  PRInt32
 #include "zlib.h"
 #include "nsISupportsUtils.h"
-#include "nsRecyclingAllocator.h"
 #include "prio.h"
 #include "plstr.h"
 #include "prlog.h"
@@ -66,12 +65,6 @@
 #include <windows.h>
 #endif
 
-/**
- * Global allocator used with zlib. Destroyed in module shutdown.
- */
-#define NBUCKETS 6
-nsRecyclingAllocator *gZlibAllocator = NULL;
-
 // For placement new used for arena allocations of zip file list
 #include NEW_H
 #define ZIP_ARENABLOCKSIZE (1*1024)
@@ -118,46 +111,14 @@ static nsresult ResolveSymlink(const char *path);
 #endif
 
 //***********************************************************
-// Allocators for use with zlib
-//
-// Use a recycling allocator, for re-use of of the zlib buffers.
 // For every inflation the following allocations are done:
-// zlibAlloc(1, 9520)
-// zlibAlloc(32768, 1)
+// malloc(1 * 9520)
+// malloc(32768 * 1)
 //***********************************************************
 
-static void *
-zlibAlloc(void *opaque, uInt items, uInt size)
-{
-  nsRecyclingAllocator *zallocator = (nsRecyclingAllocator *)opaque;
-  if (zallocator) {
-    return gZlibAllocator->Malloc(items * size);
-  }
-  return malloc(items * size);
-}
-
-static void
-zlibFree(void *opaque, void *ptr)
-{
-  nsRecyclingAllocator *zallocator = (nsRecyclingAllocator *)opaque;
-  if (zallocator)
-    zallocator->Free(ptr);
-  else
-    free(ptr);
-}
-
 nsresult gZlibInit(z_stream *zs)
 {
   memset(zs, 0, sizeof(z_stream));
-  //-- ensure we have our zlib allocator for better performance
-  if (!gZlibAllocator) {
-    gZlibAllocator = new nsRecyclingAllocator(NBUCKETS, NS_DEFAULT_RECYCLE_TIMEOUT, "libjar");
-  }
-  if (gZlibAllocator) {
-    zs->zalloc = zlibAlloc;
-    zs->zfree = zlibFree;
-    zs->opaque = gZlibAllocator;
-  }
   int zerr = inflateInit2(zs, -MAX_WBITS);
   if (zerr != Z_OK) return NS_ERROR_OUT_OF_MEMORY;