diff --git a/browser/api/atom_api_app.cc b/browser/api/atom_api_app.cc
index 909bff3950c7..375087a99f6c 100644
--- a/browser/api/atom_api_app.cc
+++ b/browser/api/atom_api_app.cc
@@ -101,11 +101,38 @@ v8::Handle<v8::Value> App::Focus(const v8::Arguments &args) {
 
 // static
 v8::Handle<v8::Value> App::GetVersion(const v8::Arguments &args) {
+  return ToV8Value(Browser::Get()->GetVersion());
+}
+
+// static
+v8::Handle<v8::Value> App::SetVersion(const v8::Arguments &args) {
   v8::HandleScope scope;
 
-  std::string version(Browser::Get()->GetVersion());
+  std::string version;
+  if (!FromV8Arguments(args, &version))
+    return node::ThrowError("Bad argument");
 
-  return v8::String::New(version.data(), version.size());
+  Browser::Get()->SetVersion(version);
+
+  return v8::Undefined();
+}
+
+// static
+v8::Handle<v8::Value> App::GetName(const v8::Arguments &args) {
+  return ToV8Value(Browser::Get()->GetName());
+}
+
+// static
+v8::Handle<v8::Value> App::SetName(const v8::Arguments &args) {
+  v8::HandleScope scope;
+
+  std::string name;
+  if (!FromV8Arguments(args, &name))
+    return node::ThrowError("Bad argument");
+
+  Browser::Get()->SetName(name);
+
+  return v8::Undefined();
 }
 
 // static
@@ -144,7 +171,10 @@ v8::Handle<v8::Value> App::AppendArgument(const v8::Arguments &args) {
 
 // static
 v8::Handle<v8::Value> App::DockBounce(const v8::Arguments& args) {
-  std::string type = FromV8Value(args[0]);
+  std::string type;
+  if (!FromV8Arguments(args, &type))
+    return node::ThrowError("Bad argument");
+
   int request_id = -1;
 
   if (type == "critical")
@@ -154,7 +184,7 @@ v8::Handle<v8::Value> App::DockBounce(const v8::Arguments& args) {
   else
     return node::ThrowTypeError("Invalid bounce type");
 
-  return v8::Integer::New(request_id);
+  return ToV8Value(request_id);
 }
 
 // static
@@ -190,6 +220,9 @@ void App::Initialize(v8::Handle<v8::Object> target) {
   NODE_SET_PROTOTYPE_METHOD(t, "terminate", Terminate);
   NODE_SET_PROTOTYPE_METHOD(t, "focus", Focus);
   NODE_SET_PROTOTYPE_METHOD(t, "getVersion", GetVersion);
+  NODE_SET_PROTOTYPE_METHOD(t, "setVersion", SetVersion);
+  NODE_SET_PROTOTYPE_METHOD(t, "getName", GetName);
+  NODE_SET_PROTOTYPE_METHOD(t, "setName", SetName);
 
   target->Set(v8::String::NewSymbol("Application"), t->GetFunction());
 
diff --git a/browser/api/atom_api_app.h b/browser/api/atom_api_app.h
index 04b70eb78f91..ab701d9369f3 100644
--- a/browser/api/atom_api_app.h
+++ b/browser/api/atom_api_app.h
@@ -40,6 +40,9 @@ class App : public EventEmitter,
   static v8::Handle<v8::Value> Terminate(const v8::Arguments &args);
   static v8::Handle<v8::Value> Focus(const v8::Arguments &args);
   static v8::Handle<v8::Value> GetVersion(const v8::Arguments &args);
+  static v8::Handle<v8::Value> SetVersion(const v8::Arguments &args);
+  static v8::Handle<v8::Value> GetName(const v8::Arguments &args);
+  static v8::Handle<v8::Value> SetName(const v8::Arguments &args);
   static v8::Handle<v8::Value> AppendSwitch(const v8::Arguments &args);
   static v8::Handle<v8::Value> AppendArgument(const v8::Arguments &args);
 
diff --git a/browser/api/atom_api_window.cc b/browser/api/atom_api_window.cc
index c05493ca9672..27cf5706bbbc 100644
--- a/browser/api/atom_api_window.cc
+++ b/browser/api/atom_api_window.cc
@@ -576,16 +576,17 @@ v8::Handle<v8::Value> Window::IsCrashed(const v8::Arguments &args) {
 v8::Handle<v8::Value> Window::LoadURL(const v8::Arguments &args) {
   UNWRAP_WINDOW_AND_CHECK;
 
-  std::string url;
+  GURL url;
   if (!FromV8Arguments(args, &url))
     return node::ThrowTypeError("Bad argument");
 
   NavigationController& controller =
       self->window_->GetWebContents()->GetController();
-  controller.LoadURL(GURL(url),
-                     content::Referrer(),
-                     content::PAGE_TRANSITION_AUTO_TOPLEVEL,
-                     std::string());
+
+  content::NavigationController::LoadURLParams params(url);
+  params.transition_type = content::PAGE_TRANSITION_TYPED;
+  params.override_user_agent = content::NavigationController::UA_OVERRIDE_TRUE;
+  controller.LoadURLWithParams(params);
 
   return v8::Undefined();
 }
@@ -596,9 +597,9 @@ v8::Handle<v8::Value> Window::GetURL(const v8::Arguments &args) {
 
   NavigationController& controller =
       self->window_->GetWebContents()->GetController();
-  std::string url;
+  GURL url;
   if (controller.GetActiveEntry())
-    url = controller.GetActiveEntry()->GetVirtualURL().spec();
+    url = controller.GetActiveEntry()->GetVirtualURL();
 
   return ToV8Value(url);
 }
diff --git a/browser/atom/atom.coffee b/browser/atom/atom.coffee
index 6a52cac919b1..2488620467f4 100644
--- a/browser/atom/atom.coffee
+++ b/browser/atom/atom.coffee
@@ -59,5 +59,15 @@ catch error
   packagePath = path.join process.resourcesPath, 'browser', 'default_app'
   packageJson = JSON.parse(fs.readFileSync(path.join(packagePath, 'package.json')))
 
+# Set application's version.
+app = require 'app'
+app.setVersion packageJson.version if packageJson.version?
+
+# Set application's name.
+if packageJson.productName?
+  app.setName packageJson.productName
+else if packageJson.name?
+  app.setName packageJson.name
+
 # Finally load app's main.js and transfer control to C++.
 require path.join(packagePath, packageJson.main)
diff --git a/browser/browser.cc b/browser/browser.cc
index c4a2d50cdf8f..49f2cef4ef6d 100644
--- a/browser/browser.cc
+++ b/browser/browser.cc
@@ -33,6 +33,34 @@ void Browser::Quit() {
   window_list->CloseAllWindows();
 }
 
+std::string Browser::GetVersion() const {
+  if (version_override_.empty()) {
+    std::string version = GetExecutableFileVersion();
+    if (!version.empty())
+      return version;
+  }
+
+  return version_override_;
+}
+
+void Browser::SetVersion(const std::string& version) {
+  version_override_ = version;
+}
+
+std::string Browser::GetName() const {
+  if (name_override_.empty()) {
+    std::string name = GetExecutableFileProductName();
+    if (!name.empty())
+      return name;
+  }
+
+  return name_override_;
+}
+
+void Browser::SetName(const std::string& name) {
+  name_override_ = name;
+}
+
 bool Browser::OpenFile(const std::string& file_path) {
   bool prevent_default = false;
   FOR_EACH_OBSERVER(BrowserObserver,
diff --git a/browser/browser.h b/browser/browser.h
index c715dfe1c618..d20fc973ff26 100644
--- a/browser/browser.h
+++ b/browser/browser.h
@@ -31,7 +31,16 @@ class Browser : public WindowListObserver {
   void Focus();
 
   // Returns the version of the executable (or bundle).
-  std::string GetVersion();
+  std::string GetVersion() const;
+
+  // Overrides the application version.
+  void SetVersion(const std::string& version);
+
+  // Returns the application's name, default is just Atom-Shell.
+  std::string GetName() const;
+
+  // Overrides the application name.
+  void SetName(const std::string& name);
 
 #if defined(OS_MACOSX)
   // Bounce the dock icon.
@@ -68,6 +77,12 @@ class Browser : public WindowListObserver {
   bool is_quiting() const { return is_quiting_; }
 
  protected:
+  // Returns the version of application bundle or executable file.
+  std::string GetExecutableFileVersion() const;
+
+  // Returns the name of application bundle or executable file.
+  std::string GetExecutableFileProductName() const;
+
   // Send the will-quit message and then terminate the application.
   void NotifyAndTerminate();
 
@@ -84,6 +99,9 @@ class Browser : public WindowListObserver {
   // Observers of the browser.
   ObserverList<BrowserObserver> observers_;
 
+  std::string version_override_;
+  std::string name_override_;
+
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
diff --git a/browser/browser_mac.mm b/browser/browser_mac.mm
index 95ce57e1d1bd..63312f4e6ec1 100644
--- a/browser/browser_mac.mm
+++ b/browser/browser_mac.mm
@@ -19,12 +19,18 @@ void Browser::Focus() {
   [[AtomApplication sharedApplication] activateIgnoringOtherApps:YES];
 }
 
-std::string Browser::GetVersion() {
+std::string Browser::GetExecutableFileVersion() const {
   NSDictionary* infoDictionary = base::mac::OuterBundle().infoDictionary;
   NSString *version = [infoDictionary objectForKey:@"CFBundleVersion"];
   return base::SysNSStringToUTF8(version);
 }
 
+std::string Browser::GetExecutableFileProductName() const {
+  NSDictionary* infoDictionary = base::mac::OuterBundle().infoDictionary;
+  NSString *version = [infoDictionary objectForKey:@"CFBundleName"];
+  return base::SysNSStringToUTF8(version);
+}
+
 void Browser::CancelQuit() {
   [[AtomApplication sharedApplication] replyToApplicationShouldTerminate:NO];
 }
diff --git a/browser/browser_win.cc b/browser/browser_win.cc
index 1948abff5cb4..b065f70782fd 100644
--- a/browser/browser_win.cc
+++ b/browser/browser_win.cc
@@ -12,6 +12,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
+#include "common/atom_version.h"
 
 namespace atom {
 
@@ -43,7 +44,7 @@ void Browser::Focus() {
   EnumWindows(&WindowsEnumerationHandler, reinterpret_cast<LPARAM>(&pid));
 }
 
-std::string Browser::GetVersion() {
+std::string Browser::GetExecutableFileVersion() const {
   base::FilePath path;
   if (PathService::Get(base::FILE_EXE, &path)) {
     scoped_ptr<FileVersionInfo> version_info(
@@ -51,7 +52,18 @@ std::string Browser::GetVersion() {
     return UTF16ToUTF8(version_info->product_version());
   }
 
-  return "";
+  return ATOM_VERSION_STRING;
+}
+
+std::string Browser::GetExecutableFileProductName() const {
+  base::FilePath path;
+  if (PathService::Get(base::FILE_EXE, &path)) {
+    scoped_ptr<FileVersionInfo> version_info(
+        FileVersionInfo::CreateFileVersionInfo(path));
+    return UTF16ToUTF8(version_info->product_name());
+  }
+
+  return "Atom-Shell";
 }
 
 void Browser::CancelQuit() {
diff --git a/browser/default_app/package.json b/browser/default_app/package.json
index f27949723edf..b6abcc866952 100644
--- a/browser/default_app/package.json
+++ b/browser/default_app/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "atom",
+  "name": "atom-shell-default-app",
   "version": "0.1.0",
   "main": "main.js",
   "dependencies": {
diff --git a/browser/native_window.cc b/browser/native_window.cc
index 99e89d57320c..16e0891bc8d3 100644
--- a/browser/native_window.cc
+++ b/browser/native_window.cc
@@ -8,6 +8,7 @@
 
 #include "base/file_util.h"
 #include "base/message_loop.h"
+#include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "brightray/browser/inspectable_web_contents.h"
@@ -16,6 +17,7 @@
 #include "browser/atom_browser_context.h"
 #include "browser/atom_browser_main_parts.h"
 #include "browser/atom_javascript_dialog_manager.h"
+#include "browser/browser.h"
 #include "browser/window_list.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/invalidate_type.h"
@@ -26,7 +28,9 @@
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
+#include "content/public/common/renderer_preferences.h"
 #include "common/api/api_messages.h"
+#include "common/atom_version.h"
 #include "common/options_switches.h"
 #include "ipc/ipc_message_macros.h"
 #include "ui/gfx/codec/png_codec.h"
@@ -34,6 +38,7 @@
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 #include "webkit/glue/image_decoder.h"
+#include "webkit/user_agent/user_agent_util.h"
 
 using content::NavigationEntry;
 
@@ -59,6 +64,15 @@ NativeWindow::NativeWindow(content::WebContents* web_contents,
 
   WindowList::AddWindow(this);
 
+  // Override the user agent to contain application and atom-shell's version.
+  Browser* browser = Browser::Get();
+  std::string product_name = base::StringPrintf(
+      "%s/%s Atom-Shell/" ATOM_VERSION_STRING,
+      browser->GetName().c_str(),
+      browser->GetVersion().c_str());
+  web_contents->GetMutableRendererPrefs()->user_agent_override =
+      webkit_glue::BuildUserAgentFromProduct(product_name);
+
   // Get notified of title updated message.
   registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_TITLE_UPDATED,
       content::Source<content::WebContents>(web_contents));
diff --git a/common/v8_conversions.h b/common/v8_conversions.h
index 57d69c2daae6..55b770996a7a 100644
--- a/common/v8_conversions.h
+++ b/common/v8_conversions.h
@@ -12,6 +12,7 @@
 #include "base/files/file_path.h"
 #include "base/string16.h"
 #include "browser/api/atom_api_window.h"
+#include "googleurl/src/gurl.h"
 #include "ui/gfx/rect.h"
 #include "v8/include/v8.h"
 
@@ -36,6 +37,11 @@ struct FromV8Value {
     return string16(reinterpret_cast<const char16*>(*s), s.length());
   }
 
+  operator GURL() {
+    std::string str = FromV8Value(value_);
+    return GURL(str);
+  }
+
   operator base::FilePath() {
     return base::FilePath::FromUTF8Unsafe(FromV8Value(value_));
   }
@@ -116,6 +122,10 @@ inline v8::Handle<v8::Value> ToV8Value(const string16& s) {
   return v8::String::New(reinterpret_cast<const uint16_t*>(s.data()), s.size());
 }
 
+inline v8::Handle<v8::Value> ToV8Value(const GURL& url) {
+  return ToV8Value(url.spec());
+}
+
 inline v8::Handle<v8::Value> ToV8Value(const base::FilePath& path) {
   std::string path_string(path.AsUTF8Unsafe());
   return v8::String::New(path_string.data(), path_string.size());
@@ -159,6 +169,11 @@ bool V8ValueCanBeConvertedTo<string16>(v8::Handle<v8::Value> value) {
   return V8ValueCanBeConvertedTo<std::string>(value);
 }
 
+template<> inline
+bool V8ValueCanBeConvertedTo<GURL>(v8::Handle<v8::Value> value) {
+  return V8ValueCanBeConvertedTo<std::string>(value);
+}
+
 template<> inline
 bool V8ValueCanBeConvertedTo<base::FilePath>(v8::Handle<v8::Value> value) {
   return V8ValueCanBeConvertedTo<std::string>(value);
diff --git a/docs/api/browser/app.md b/docs/api/browser/app.md
index c6e16a8875bf..55898cf30556 100644
--- a/docs/api/browser/app.md
+++ b/docs/api/browser/app.md
@@ -77,7 +77,19 @@ code will not run.
 
 ## app.getVersion()
 
-Returns the version of current bundle or executable.
+Returns the version of loaded application, if no version is found in
+application's `package.json`, the version of current bundle or executable would
+be returned.
+
+## app.getName()
+
+Returns current application's name, the name in `package.json` would be
+used.
+
+Usually the `name` field of `package.json` is a short lowercased name, according
+to the spec of npm modules. So usually you should also specify a `productName`
+field, which is your application's full capitalized name, and it will be
+preferred over `name` by atom-shell.
 
 ## app.getBrowserWindows()
 
diff --git a/spec/api/app.coffee b/spec/api/app.coffee
new file mode 100644
index 000000000000..d2d912db701e
--- /dev/null
+++ b/spec/api/app.coffee
@@ -0,0 +1,23 @@
+assert = require 'assert'
+app = require('remote').require 'app'
+
+describe 'app module', ->
+  describe 'app.getVersion()', ->
+    it 'returns the version field of package.json', ->
+      assert.equal app.getVersion(), '0.1.0'
+
+  describe 'app.setVersion(version)', ->
+    it 'overrides the version', ->
+      assert.equal app.getVersion(), '0.1.0'
+      app.setVersion 'test-version'
+      assert.equal app.getVersion(), 'test-version'
+
+  describe 'app.getName()', ->
+    it 'returns the name field of package.json', ->
+      assert.equal app.getName(), 'atom-shell-default-app'
+
+  describe 'app.setName(name)', ->
+    it 'overrides the name', ->
+      assert.equal app.getName(), 'atom-shell-default-app'
+      app.setName 'test-name'
+      assert.equal app.getName(), 'test-name'