diff --git a/CHANGELOG b/CHANGELOG
index 92420af5cc..f41bce130f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -12,6 +12,10 @@ cocos2d-x-3.0beta2 ?.? ?
      [NEW]          Renderer: Added BatchCommand. This command is not "batchable" with other commands, but improves performance in about 10%
      [NEW]          LuaBindings: Bindings-generator supports to bind namespace for lua.
      
+     [FIX]          JSB: Pure JS class which is inherited from cc.Class will trigger an irrelevant log.
+     [FIX]          JSB: Mac and iOS Simulator should also use SpiderMonkey which was built in RELEASE mode.
+     [FIX]          JSB: Crash when running JSB projects on iOS device in DEBUG mode.
+     [FIX]          JSB: Crash when Firefox connects to JSB application on Mac platform.
      [FIX]          Uses EventDispatcher to access event in LUA testcase.
      [FIX]          Exposes SAXParser class to JS, it is used for parsing XML in JS.
      [FIX]          Uses unified `desktop/CCEGLView.h/cpp` for desktop platforms (windows, mac, linux).
diff --git a/build/cocos2d_libs.xcodeproj/project.pbxproj.REMOVED.git-id b/build/cocos2d_libs.xcodeproj/project.pbxproj.REMOVED.git-id
index 2ee1321928..ab43aa8b01 100644
--- a/build/cocos2d_libs.xcodeproj/project.pbxproj.REMOVED.git-id
+++ b/build/cocos2d_libs.xcodeproj/project.pbxproj.REMOVED.git-id
@@ -1 +1 @@
-cf66879460037639be60615c3aeeb56e799daaeb
\ No newline at end of file
+3c7f70ab861d6d3348d4f598cf492b29b306d9d9
\ No newline at end of file
diff --git a/build/cocos2d_samples.xcodeproj/project.pbxproj.REMOVED.git-id b/build/cocos2d_samples.xcodeproj/project.pbxproj.REMOVED.git-id
index 779b19e39d..3389050ae0 100644
--- a/build/cocos2d_samples.xcodeproj/project.pbxproj.REMOVED.git-id
+++ b/build/cocos2d_samples.xcodeproj/project.pbxproj.REMOVED.git-id
@@ -1 +1 @@
-c4a10d83e31c57266fcc9caf7ff46b2bb98706e1
\ No newline at end of file
+c958533394964fe0c38bd60c272a0b48ec38d9d6
\ No newline at end of file
diff --git a/cocos/2d/CCConfiguration.cpp b/cocos/2d/CCConfiguration.cpp
index dbdf12ea14..940c9fdb9b 100644
--- a/cocos/2d/CCConfiguration.cpp
+++ b/cocos/2d/CCConfiguration.cpp
@@ -75,7 +75,7 @@ bool Configuration::init()
     _valueDict["cocos2d.x.compiled_with_gl_state_cache"] = Value(true);
 #endif
 
-#ifdef DEBUG
+#if COCOS2D_DEBUG
 	_valueDict["cocos2d.x.build_type"] = Value("DEBUG");
 #else
     _valueDict["cocos2d.x.build_type"] = Value("RELEASE");
diff --git a/cocos/2d/CCDirector.cpp b/cocos/2d/CCDirector.cpp
index c45e10851e..f7c8bcdd35 100644
--- a/cocos/2d/CCDirector.cpp
+++ b/cocos/2d/CCDirector.cpp
@@ -351,7 +351,7 @@ void Director::calculateDeltaTime()
         _deltaTime = MAX(0, _deltaTime);
     }
 
-#ifdef DEBUG
+#if COCOS2D_DEBUG
     // If we are debugging our code, prevent big delta time
     if (_deltaTime > 0.2f)
     {
diff --git a/cocos/scripting/auto-generated b/cocos/scripting/auto-generated
index e8828b9aa8..f1e3854dee 160000
--- a/cocos/scripting/auto-generated
+++ b/cocos/scripting/auto-generated
@@ -1 +1 @@
-Subproject commit e8828b9aa8b1bfdf08bc3c077ec2cc1ebd9b9c82
+Subproject commit f1e3854deef8fdf4def2894f525017f00261a217
diff --git a/cocos/scripting/javascript/bindings/ScriptingCore.cpp b/cocos/scripting/javascript/bindings/ScriptingCore.cpp
index 6510b90167..7394916768 100644
--- a/cocos/scripting/javascript/bindings/ScriptingCore.cpp
+++ b/cocos/scripting/javascript/bindings/ScriptingCore.cpp
@@ -46,7 +46,7 @@
 
 #include "js_bindings_config.h"
 
-#if DEBUG
+#if COCOS2D_DEBUG
 #define TRACE_DEBUGGER_SERVER(...) CCLOG(__VA_ARGS__)
 #else
 #define TRACE_DEBUGGER_SERVER(...)
@@ -568,7 +568,7 @@ JSBool ScriptingCore::runScript(const char *path, JSObject* global, JSContext* c
     if (script) {
         jsval rval;
         filename_script[path] = script;
-        JSAutoCompartment ac(cx, global);
+
         evaluatedOK = JS_ExecuteScript(cx, global, script, &rval);
         if (JS_FALSE == evaluatedOK) {
             cocos2d::log("(evaluatedOK == JS_FALSE)");
@@ -704,7 +704,7 @@ JSBool ScriptingCore::dumpRoot(JSContext *cx, uint32_t argc, jsval *vp)
 {
     // JS_DumpNamedRoots is only available on DEBUG versions of SpiderMonkey.
     // Mac and Simulator versions were compiled with DEBUG.
-#if DEBUG
+#if COCOS2D_DEBUG
 //    JSContext *_cx = ScriptingCore::getInstance()->getGlobalContext();
 //    JSRuntime *rt = JS_GetRuntime(_cx);
 //    JS_DumpNamedRoots(rt, dumpNamedRoot, NULL);
@@ -1408,6 +1408,9 @@ void ScriptingCore::enableDebugger()
         JS_SetDebugMode(_cx, JS_TRUE);
         
         _debugGlobal = NewGlobalObject(_cx, true);
+        // Adds the debugger object to root, otherwise it may be collected by GC.
+        JS_AddObjectRoot(_cx, &_debugGlobal);
+        
         JS_WrapObject(_cx, &_debugGlobal);
         JSAutoCompartment ac(_cx, _debugGlobal);
         // these are used in the debug program
diff --git a/cocos/scripting/javascript/script/jsb_cocos2d.js b/cocos/scripting/javascript/script/jsb_cocos2d.js
index 3237113d99..2ab020b08a 100644
--- a/cocos/scripting/javascript/script/jsb_cocos2d.js
+++ b/cocos/scripting/javascript/script/jsb_cocos2d.js
@@ -651,10 +651,13 @@ cc.Class.extend = function (prop) {
     function Class() {
         // All construction is actually done in the init method
         if (!initializing) {
-            if (!this.ctor)
-                cc.log("No ctor function found, please set `classes_need_extend` section at `ini` file as `tools/tojs/cocos2dx.ini`");
-            else
+            if (!this.ctor) {
+                if (this.__nativeObj)
+                    cc.log("No ctor function found! Please check whether `classes_need_extend` section in `ini` file like which in `tools/tojs/cocos2dx.ini`");
+            }
+            else {
                 this.ctor.apply(this, arguments);
+            }
         }
     }
 
diff --git a/external/spidermonkey/include/mac/js-config.h b/external/spidermonkey/include/mac/js-config.h
index ae4f2abf71..672d79ca0a 100644
--- a/external/spidermonkey/include/mac/js-config.h
+++ b/external/spidermonkey/include/mac/js-config.h
@@ -20,7 +20,7 @@
 
 /* Define to 1 if SpiderMonkey should support the ability to perform
    entirely too much GC.  */
-#define JS_GC_ZEAL 1
+/* #undef JS_GC_ZEAL */
 
 /* Define to 1 if the <endian.h> header is present and
    useable.  See jscpucfg.h.  */
diff --git a/external/spidermonkey/prebuilt/ios/libjs_static.a.REMOVED.git-id b/external/spidermonkey/prebuilt/ios/libjs_static.a.REMOVED.git-id
index 3aa7da9b21..6249ee2757 100644
--- a/external/spidermonkey/prebuilt/ios/libjs_static.a.REMOVED.git-id
+++ b/external/spidermonkey/prebuilt/ios/libjs_static.a.REMOVED.git-id
@@ -1 +1 @@
-1267f1437ae315da4c23e0fc5e7e3f70b4b3c8e2
\ No newline at end of file
+1541255b60cd30b2a7f3424c2ef7b1f85f8474b7
\ No newline at end of file
diff --git a/external/spidermonkey/prebuilt/mac/libjs_static.a.REMOVED.git-id b/external/spidermonkey/prebuilt/mac/libjs_static.a.REMOVED.git-id
index e3f35605ac..4ed807de75 100644
--- a/external/spidermonkey/prebuilt/mac/libjs_static.a.REMOVED.git-id
+++ b/external/spidermonkey/prebuilt/mac/libjs_static.a.REMOVED.git-id
@@ -1 +1 @@
-2385a209e3aa59896599e079658d761fd2985c9a
\ No newline at end of file
+b49342959d039cb5961a5874f38ac882feadaf82
\ No newline at end of file
diff --git a/tools/bindings-generator b/tools/bindings-generator
index 6ae9f506f5..8fd59c24bf 160000
--- a/tools/bindings-generator
+++ b/tools/bindings-generator
@@ -1 +1 @@
-Subproject commit 6ae9f506f5ac7288bd27d11594a8a8f4e6e8a7d1
+Subproject commit 8fd59c24bf5b46d2e02a8173ac19cdfc877263c5
diff --git a/tools/tojs/cocos2dx_studio.ini b/tools/tojs/cocos2dx_studio.ini
index 64cd414f96..4d4e9e6e60 100644
--- a/tools/tojs/cocos2dx_studio.ini
+++ b/tools/tojs/cocos2dx_studio.ini
@@ -79,4 +79,4 @@ abstract_classes = ColliderDetector ColliderBody ArmatureDataManager ComAttribut
 # Determining whether to use script object(js object) to control the lifecycle of native(cpp) object or the other way around. Supported values are 'yes' or 'no'.
 script_control_cpp = no
 
-classes_need_extend = Armature
+classes_need_extend = Armature ComController