diff --git a/brightray/browser/inspectable_web_contents_impl.cc b/brightray/browser/inspectable_web_contents_impl.cc
index 26fcc2b0f0f4..79143aa122c9 100644
--- a/brightray/browser/inspectable_web_contents_impl.cc
+++ b/brightray/browser/inspectable_web_contents_impl.cc
@@ -15,6 +15,7 @@
 #include "base/prefs/pref_service.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/values.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/devtools_client_host.h"
 #include "content/public/browser/devtools_http_handler.h"
@@ -27,22 +28,45 @@ namespace brightray {
 namespace {
 
 const char kChromeUIDevToolsURL[] = "chrome-devtools://devtools/devtools.html?can_dock=true";
-const char kIsDockedPref[] = "brightray.devtools.isDocked";
+const char kDevToolsBoundsPref[] = "brightray.devtools.bounds";
 
+void RectToDictionary(const gfx::Rect& bounds, base::DictionaryValue* dict) {
+  dict->SetInteger("x", bounds.x());
+  dict->SetInteger("y", bounds.y());
+  dict->SetInteger("width", bounds.width());
+  dict->SetInteger("height", bounds.height());
 }
 
+void DictionaryToRect(const base::DictionaryValue& dict, gfx::Rect* bounds) {
+  int x = 0, y = 0, width = 800, height = 600;
+  dict.GetInteger("x", &x);
+  dict.GetInteger("y", &y);
+  dict.GetInteger("width", &width);
+  dict.GetInteger("height", &height);
+  *bounds = gfx::Rect(x, y, width, height);
+}
+
+}  // namespace
+
 // Implemented separately on each platform.
 InspectableWebContentsView* CreateInspectableContentsView(
     InspectableWebContentsImpl* inspectable_web_contents_impl);
 
 void InspectableWebContentsImpl::RegisterPrefs(PrefRegistrySimple* registry) {
-  registry->RegisterBooleanPref(kIsDockedPref, true);
+  scoped_ptr<base::DictionaryValue> bounds_dict(new base::DictionaryValue);
+  RectToDictionary(gfx::Rect(0, 0, 800, 600), bounds_dict.get());
+  registry->RegisterDictionaryPref(kDevToolsBoundsPref, bounds_dict.release());
 }
 
 InspectableWebContentsImpl::InspectableWebContentsImpl(
     content::WebContents* web_contents)
     : web_contents_(web_contents),
       delegate_(nullptr) {
+  auto context = static_cast<BrowserContext*>(web_contents_->GetBrowserContext());
+  auto bounds_dict = context->prefs()->GetDictionary(kDevToolsBoundsPref);
+  if (bounds_dict)
+    DictionaryToRect(*bounds_dict, &devtools_bounds_);
+
   view_.reset(CreateInspectableContentsView(this));
 }
 
@@ -102,6 +126,18 @@ bool InspectableWebContentsImpl::IsDevToolsViewShowing() {
   return devtools_web_contents_ && view_->IsDevToolsViewShowing();
 }
 
+gfx::Rect InspectableWebContentsImpl::GetDevToolsBounds() const {
+  return devtools_bounds_;
+}
+
+void InspectableWebContentsImpl::SaveDevToolsBounds(const gfx::Rect& bounds) {
+  auto context = static_cast<BrowserContext*>(web_contents_->GetBrowserContext());
+  base::DictionaryValue bounds_dict;
+  RectToDictionary(bounds, &bounds_dict);
+  context->prefs()->Set(kDevToolsBoundsPref, bounds_dict);
+  devtools_bounds_ = bounds;
+}
+
 void InspectableWebContentsImpl::ActivateWindow() {
 }
 
diff --git a/brightray/browser/inspectable_web_contents_impl.h b/brightray/browser/inspectable_web_contents_impl.h
index 5c030a449f66..d02fd75400f0 100644
--- a/brightray/browser/inspectable_web_contents_impl.h
+++ b/brightray/browser/inspectable_web_contents_impl.h
@@ -14,6 +14,7 @@
 #include "content/public/browser/devtools_frontend_host_delegate.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
+#include "ui/gfx/rect.h"
 
 class PrefRegistrySimple;
 
@@ -46,6 +47,10 @@ class InspectableWebContentsImpl :
   virtual void CloseDevTools() OVERRIDE;
   virtual bool IsDevToolsViewShowing() OVERRIDE;
 
+  // Return the last position and size of devtools window.
+  gfx::Rect GetDevToolsBounds() const;
+  void SaveDevToolsBounds(const gfx::Rect& bounds);
+
   virtual void SetDelegate(InspectableWebContentsDelegate* delegate) {
     delegate_ = delegate;
   }
@@ -106,6 +111,7 @@ class InspectableWebContentsImpl :
   scoped_refptr<content::DevToolsAgentHost> agent_host_;
 
   DevToolsContentsResizingStrategy contents_resizing_strategy_;
+  gfx::Rect devtools_bounds_;
 
   scoped_ptr<DevToolsEmbedderMessageDispatcher> embedder_message_dispatcher_;
 
diff --git a/brightray/browser/mac/bry_inspectable_web_contents_view.mm b/brightray/browser/mac/bry_inspectable_web_contents_view.mm
index 99c2e4179a06..045f389f72be 100644
--- a/brightray/browser/mac/bry_inspectable_web_contents_view.mm
+++ b/brightray/browser/mac/bry_inspectable_web_contents_view.mm
@@ -95,7 +95,7 @@ using namespace brightray;
                     backing:NSBackingStoreBuffered
                       defer:YES]);
     [devtools_window_ setDelegate:self];
-    [devtools_window_ setFrameAutosaveName:@"brightray.developer.tools"];
+    [devtools_window_ setFrameAutosaveName:@"brightray.devtools"];
     [devtools_window_ setTitle:@"Developer Tools"];
     [devtools_window_ setReleasedWhenClosed:NO];
     [devtools_window_ setAutorecalculatesContentBorderThickness:NO forEdge:NSMaxYEdge];
diff --git a/brightray/browser/views/inspectable_web_contents_view_views.cc b/brightray/browser/views/inspectable_web_contents_view_views.cc
index b2013dc85e7f..03a052b1f792 100644
--- a/brightray/browser/views/inspectable_web_contents_view_views.cc
+++ b/brightray/browser/views/inspectable_web_contents_view_views.cc
@@ -29,7 +29,7 @@ class DevToolsWindowDelegate : public views::ClientView,
   // views::WidgetDelegate:
   virtual views::View* GetInitiallyFocusedView() OVERRIDE { return view_; }
   virtual bool CanResize() const OVERRIDE { return true; }
-  virtual bool CanMaximize() const OVERRIDE { return true; }
+  virtual bool CanMaximize() const OVERRIDE { return false; }
   virtual base::string16 GetWindowTitle() const OVERRIDE { return title_; }
   virtual views::Widget* GetWidget() OVERRIDE { return widget_; }
   virtual const views::Widget* GetWidget() const OVERRIDE { return widget_; }
@@ -74,6 +74,8 @@ InspectableWebContentsViewViews::InspectableWebContentsViewViews(
 }
 
 InspectableWebContentsViewViews::~InspectableWebContentsViewViews() {
+  if (devtools_window_)
+    inspectable_web_contents()->SaveDevToolsBounds(devtools_window_->GetWindowBoundsInScreen());
 }
 
 views::View* InspectableWebContentsViewViews::GetView() {
@@ -95,7 +97,7 @@ void InspectableWebContentsViewViews::ShowDevTools() {
   devtools_visible_ = true;
   if (devtools_window_) {
     devtools_window_web_view_->SetWebContents(inspectable_web_contents_->devtools_web_contents());
-    devtools_window_->CenterWindow(gfx::Size(800, 600));
+    devtools_window_->SetBounds(inspectable_web_contents()->GetDevToolsBounds());
     devtools_window_->Show();
   } else {
     devtools_web_view_->SetVisible(true);
@@ -111,6 +113,7 @@ void InspectableWebContentsViewViews::CloseDevTools() {
 
   devtools_visible_ = false;
   if (devtools_window_) {
+    inspectable_web_contents()->SaveDevToolsBounds(devtools_window_->GetWindowBoundsInScreen());
     devtools_window_.reset();
     devtools_window_web_view_ = NULL;
   } else {