diff --git a/src/common/shell_switches.cc b/src/common/shell_switches.cc
index 2a60cb715f..92810c73e3 100644
--- a/src/common/shell_switches.cc
+++ b/src/common/shell_switches.cc
@@ -37,11 +37,11 @@ const char kUrl[] = "url";
 // Set current working directory
 const char kWorkingDirectory[] = "working-directory";
 
-const char kmMain[]       = "main";
-const char kmName[]       = "name";
-const char kmWebkit[]     = "webkit";
-const char kmNodejs[]     = "nodejs";
-const char kmWindow[]     = "window";
+const char kmMain[]   = "main";
+const char kmName[]   = "name";
+const char kmWebkit[] = "webkit";
+const char kmNodejs[] = "nodejs";
+const char kmWindow[] = "window";
 
 const char kmTitle[]      = "title";
 const char kmToolbar[]    = "toolbar";
@@ -61,4 +61,9 @@ const char kmResizable[]  = "resizable";
 const char kmFullscreen[] = "fullscreen";
 const char kmAsDesktop[]  = "as_desktop";
 
+const char kmWebgl[]     = "webgl";
+const char kmJava[]      = "java";
+const char kmPlugin[]    = "plugin";
+const char kmPageCache[] = "page-cache";
+
 }  // namespace switches
diff --git a/src/common/shell_switches.h b/src/common/shell_switches.h
index 2d25bc2a9f..4676d37b93 100644
--- a/src/common/shell_switches.h
+++ b/src/common/shell_switches.h
@@ -40,6 +40,11 @@ extern const char kmResizable[];
 extern const char kmAsDesktop[];
 extern const char kmFullscreen[];
 
+extern const char kmWebgl[];
+extern const char kmJava[];
+extern const char kmPlugin[];
+extern const char kmPageCache[];
+
 }  // namespace switches
 
 #endif  // CONTENT_NW_SRC_SHELL_SWITCHES_H_
diff --git a/src/shell_content_browser_client.cc b/src/shell_content_browser_client.cc
index 9c8f51d485..f1f4dbe9ce 100644
--- a/src/shell_content_browser_client.cc
+++ b/src/shell_content_browser_client.cc
@@ -114,16 +114,23 @@ void ShellContentBrowserClient::OverrideWebkitPrefs(
       RenderViewHost* render_view_host,
       const GURL& url,
       webkit_glue::WebPreferences* prefs) {
+  nw::Package* package = shell_browser_main_parts()->package();
+
   // Disable web security
   prefs->web_security_enabled = false;
   prefs->allow_file_access_from_file_urls = true;
 
-  // Disable plugins to speed up (TODO provide flag to enable them)
+  // Disable plugins and cache by default
   prefs->plugins_enabled = false;
   prefs->java_enabled = false;
-
-  // No caches
   prefs->uses_page_cache = false;
+
+  base::DictionaryValue* webkit;
+  if (package->root()->GetDictionary(switches::kmWebkit, &webkit)) {
+    webkit->GetBoolean(switches::kmJava, &prefs->java_enabled);
+    webkit->GetBoolean(switches::kmPlugin, &prefs->plugins_enabled);
+    webkit->GetBoolean(switches::kmPageCache, &prefs->uses_page_cache);
+  }
 }
 
 }  // namespace content