diff --git a/dom/base/nsJSEnvironment.cpp b/dom/base/nsJSEnvironment.cpp
index 9b8fe92f9afe..93c6aa5f05f0 100644
--- a/dom/base/nsJSEnvironment.cpp
+++ b/dom/base/nsJSEnvironment.cpp
@@ -3934,7 +3934,7 @@ SetMemoryHighWaterMarkPrefChangedCallback(const char* aPrefName, void* aClosure)
     // Let's limit the high water mark for the first one to 32MB,
     // and second one to 0xffffffff.
     JS_SetGCParameter(nsJSRuntime::sRuntime, JSGC_MAX_MALLOC_BYTES,
-                      32L * 1024L * 1024L);
+                      64L * 1024L * 1024L);
     JS_SetGCParameter(nsJSRuntime::sRuntime, JSGC_MAX_BYTES,
                       0xffffffff);
   } else {
diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
index 77564ea84477..88ca0aa85feb 100644
--- a/js/src/shell/js.cpp
+++ b/js/src/shell/js.cpp
@@ -5102,7 +5102,7 @@ main(int argc, char **argv, char **envp)
     CALIBRATION_DELAY_COUNT = 0;
 #endif
 
-    rt = JS_NewRuntime(128L * 1024L * 1024L);
+    rt = JS_NewRuntime(64L * 1024L * 1024L);
     if (!rt)
         return 1;
 
diff --git a/js/src/xpconnect/src/nsXPConnect.cpp b/js/src/xpconnect/src/nsXPConnect.cpp
index 191cb0f2c792..78c12bb2ffeb 100644
--- a/js/src/xpconnect/src/nsXPConnect.cpp
+++ b/js/src/xpconnect/src/nsXPConnect.cpp
@@ -2804,7 +2804,7 @@ JS_EXPORT_API(void) DumpJSObject(JSObject* obj)
 
 JS_EXPORT_API(void) DumpJSValue(jsval val)
 {
-    printf("Dumping 0x%ll.\n", (long long) JSVAL_BITS(val));
+    printf("Dumping 0x%llu.\n", (long long) JSVAL_BITS(val));
     if(JSVAL_IS_NULL(val)) {
         printf("Value is null\n");
     }