--- a/content/base/src/nsNodeInfoManager.cpp
+++ b/content/base/src/nsNodeInfoManager.cpp
@@ -146,17 +146,17 @@ nsDOMNodeAllocator::Alloc(size_t aSize)
       void* next = *((void**)result);
       mRecyclers[index] = next;
     }
     if (!result) {
       if (!mPool) {
         mPool = new PLArenaPool();
         NS_ENSURE_TRUE(mPool, nsnull);
         PL_InitArenaPool(mPool, "nsDOMNodeAllocator",
-                         4096 * (sizeof(void*)/4), 0);
+                         4096 * (sizeof(void*)/2), 0);
       }
       // Allocate a new chunk from the arena
       PL_ARENA_ALLOCATE(result, mPool, aSize);
     }
 #ifdef DEBUG
     ++gDOMNodeRecyclerCounters[index];
 #endif
   } else {