diff --git a/brightray/browser/devtools_embedder_message_dispatcher.cc b/brightray/browser/devtools_embedder_message_dispatcher.cc
index cb44ec16d86..2a4b3817659 100644
--- a/brightray/browser/devtools_embedder_message_dispatcher.cc
+++ b/brightray/browser/devtools_embedder_message_dispatcher.cc
@@ -195,6 +195,11 @@ DevToolsEmbedderMessageDispatcher::CreateForDevToolsFrontend(
   d->RegisterHandler("recordActionUMA", &Delegate::RecordActionUMA, delegate);
   d->RegisterHandlerWithCallback("sendJsonRequest",
                                  &Delegate::SendJsonRequest, delegate);
+  d->RegisterHandlerWithCallback("getPreferences",
+                                 &Delegate::GetPreferences, delegate);
+  d->RegisterHandler("setPreference", &Delegate::SetPreference, delegate);
+  d->RegisterHandler("removePreference", &Delegate::RemovePreference, delegate);
+  d->RegisterHandler("clearPreferences", &Delegate::ClearPreferences, delegate);
   return d;
 }
 
diff --git a/brightray/browser/devtools_embedder_message_dispatcher.h b/brightray/browser/devtools_embedder_message_dispatcher.h
index 851a2f49058..46f54dfbf2c 100644
--- a/brightray/browser/devtools_embedder_message_dispatcher.h
+++ b/brightray/browser/devtools_embedder_message_dispatcher.h
@@ -73,6 +73,11 @@ class DevToolsEmbedderMessageDispatcher {
     virtual void SendJsonRequest(const DispatchCallback& callback,
                                  const std::string& browser_id,
                                  const std::string& url) = 0;
+    virtual void GetPreferences(const DispatchCallback& callback) = 0;
+    virtual void SetPreference(const std::string& name,
+                               const std::string& value) = 0;
+    virtual void RemovePreference(const std::string& name) = 0;
+    virtual void ClearPreferences() = 0;
   };
 
   using DispatchCallback = Delegate::DispatchCallback;
diff --git a/brightray/browser/inspectable_web_contents_impl.cc b/brightray/browser/inspectable_web_contents_impl.cc
index 80b142c4ad6..6d2f24fae4c 100644
--- a/brightray/browser/inspectable_web_contents_impl.cc
+++ b/brightray/browser/inspectable_web_contents_impl.cc
@@ -17,6 +17,7 @@
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
+#include "base/prefs/scoped_user_pref_update.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
@@ -44,6 +45,7 @@ const char kChromeUIDevToolsURL[] = "chrome-devtools://devtools/devtools.html?"
                                     "experiments=true";
 const char kDevToolsBoundsPref[] = "brightray.devtools.bounds";
 const char kDevToolsZoomPref[] = "brightray.devtools.zoom";
+const char kDevToolsPreferences[] = "brightray.devtools.preferences";
 
 const char kFrontendHostId[] = "id";
 const char kFrontendHostMethod[] = "method";
@@ -160,6 +162,7 @@ void InspectableWebContentsImpl::RegisterPrefs(PrefRegistrySimple* registry) {
   RectToDictionary(gfx::Rect(0, 0, 800, 600), bounds_dict.get());
   registry->RegisterDictionaryPref(kDevToolsBoundsPref, bounds_dict.release());
   registry->RegisterDoublePref(kDevToolsZoomPref, 0.);
+  registry->RegisterDictionaryPref(kDevToolsPreferences);
 }
 
 InspectableWebContentsImpl::InspectableWebContentsImpl(
@@ -469,6 +472,29 @@ void InspectableWebContentsImpl::SendJsonRequest(const DispatchCallback& callbac
   callback.Run(nullptr);
 }
 
+void InspectableWebContentsImpl::GetPreferences(
+    const DispatchCallback& callback) {
+  const base::DictionaryValue* prefs = pref_service_->GetDictionary(
+      kDevToolsPreferences);
+  callback.Run(prefs);
+}
+
+void InspectableWebContentsImpl::SetPreference(const std::string& name,
+                                               const std::string& value) {
+  DictionaryPrefUpdate update(pref_service_, kDevToolsPreferences);
+  update.Get()->SetStringWithoutPathExpansion(name, value);
+}
+
+void InspectableWebContentsImpl::RemovePreference(const std::string& name) {
+  DictionaryPrefUpdate update(pref_service_, kDevToolsPreferences);
+  update.Get()->RemoveWithoutPathExpansion(name, nullptr);
+}
+
+void InspectableWebContentsImpl::ClearPreferences() {
+  DictionaryPrefUpdate update(pref_service_, kDevToolsPreferences);
+  update.Get()->Clear();
+}
+
 void InspectableWebContentsImpl::HandleMessageFromDevToolsFrontend(const std::string& message) {
   std::string method;
   base::ListValue empty_params;
diff --git a/brightray/browser/inspectable_web_contents_impl.h b/brightray/browser/inspectable_web_contents_impl.h
index 0c185df79ea..62cfffec4f6 100644
--- a/brightray/browser/inspectable_web_contents_impl.h
+++ b/brightray/browser/inspectable_web_contents_impl.h
@@ -110,6 +110,11 @@ class InspectableWebContentsImpl :
   void SendJsonRequest(const DispatchCallback& callback,
                        const std::string& browser_id,
                        const std::string& url) override;
+  void GetPreferences(const DispatchCallback& callback) override;
+  void SetPreference(const std::string& name,
+                     const std::string& value) override;
+  void RemovePreference(const std::string& name) override;
+  void ClearPreferences() override;
 
   // content::DevToolsFrontendHostDelegate:
   void HandleMessageFromDevToolsFrontend(const std::string& message) override;