Profiler can be enabled via config file.

NzbDrone.Common/ConfigFileProvider.cs

@@ -62,6 +62,12 @@ namespace NzbDrone.Common
             set { SetValue("AuthenticationType", (int)value); }
         }
 
+        public virtual bool EnableProfiler
+        {
+            get { return GetValueBoolean("EnableProfiler", false); }
+            set { SetValue("EnableProfiler", value); }
+        }
+
         public virtual int GetValueInt(string key, int defaultValue)
         {
             return Convert.ToInt32(GetValue(key, defaultValue));

NzbDrone.Web/App_Start/MiniProfiler.cs

@@ -5,6 +5,7 @@ using MvcMiniProfiler;
 using MvcMiniProfiler.MVCHelpers;
 using Microsoft.Web.Infrastructure.DynamicModuleHelper;
 using NzbDrone.Common;
+using NzbDrone.Web.Helpers;
 
 //using System.Data;
 //using System.Data.Entity;
@@ -69,7 +70,7 @@ namespace NzbDrone.Web.App_Start
                 //  so authenticated users are always profiled
                 //if (request.IsLocal) { MiniProfiler.Start(); }
 
-                if (!EnviromentProvider.IsProduction)
+                if (!EnviromentProvider.IsProduction || ProfilerHelper.Enabled())
                 {
                     MiniProfiler.Start();
                 }

NzbDrone.Web/Helpers/ProfilerHelper.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using NzbDrone.Common;
+
+namespace NzbDrone.Web.Helpers
+{
+    public static class ProfilerHelper
+    {
+        public static bool Enabled()
+        {
+            var enviromentProvider = new EnviromentProvider();
+            var configFileProvider = new ConfigFileProvider(enviromentProvider);
+
+            return configFileProvider.EnableProfiler;
+        }
+    }
+}

NzbDrone.Web/NzbDrone.Web.csproj

@@ -219,6 +219,7 @@
       <DependentUpon>Global.asax</DependentUpon>
     </Compile>
     <Compile Include="Helpers\HtmlIncludeExtentions.cs" />
+    <Compile Include="Helpers\ProfilerHelper.cs" />
     <Compile Include="Helpers\ValueExtension.cs" />
     <Compile Include="Helpers\DescriptionExtension.cs" />
     <Compile Include="Helpers\HtmlPrefixScopeExtensions.cs" />

NzbDrone.Web/Views/Shared/_Layout.cshtml

@@ -13,7 +13,7 @@
         ViewBag.Title = String.Format("{0} - NzbDrone", ViewBag.Title);
     }
     <title>@ViewBag.Title</title>
-    @if (!EnviromentProvider.IsProduction)
+    @if (!EnviromentProvider.IsProduction || ProfilerHelper.Enabled())
     {
         @MvcMiniProfiler.MiniProfiler.RenderIncludes()
     }