diff --git a/ModernKeePass.Application/Entry/Models/EntryVm.cs b/ModernKeePass.Application/Entry/Models/EntryVm.cs
index 281ad3d..cef4094 100644
--- a/ModernKeePass.Application/Entry/Models/EntryVm.cs
+++ b/ModernKeePass.Application/Entry/Models/EntryVm.cs
@@ -20,7 +20,7 @@ namespace ModernKeePass.Application.Entry.Models
         public FieldVm Password { get; set; }
         public FieldVm Notes { get; set; }
         public FieldVm Url { get; set; }
-        public bool HasUrl => !string.IsNullOrEmpty(Url.Value);
+        public bool IsValidUrl => Uri.IsWellFormedUriString(Url.Value, UriKind.Absolute);
         public List<FieldVm> AdditionalFields { get; set; }
         public List<EntryVm> History { get; set; }
         public Icon Icon { get; set; }
diff --git a/ModernKeePass/ResourceDictionaries/Styles.xaml b/ModernKeePass/ResourceDictionaries/Styles.xaml
index ee0f9b7..ecbc6d0 100644
--- a/ModernKeePass/ResourceDictionaries/Styles.xaml
+++ b/ModernKeePass/ResourceDictionaries/Styles.xaml
@@ -86,4 +86,8 @@
     <Thickness x:Key="FlyoutBorderThemeThickness">0</Thickness>
     <SolidColorBrush x:Key="FlyoutBorderThemeBrush" Color="{ThemeResource FlyoutColor}" />
     <SolidColorBrush x:Key="FlyoutBackgroundThemeBrush" Color="{ThemeResource FlyoutColor}" />
+
+    <Thickness x:Key="ToolTipBorderThemeThickness">0</Thickness>
+    <SolidColorBrush x:Key="ToolTipBorderThemeBrush" Color="{ThemeResource FlyoutColor}" />
+    <SolidColorBrush x:Key="ToolTipBackgroundThemeBrush" Color="{ThemeResource FlyoutColor}" />
 </ResourceDictionary>
diff --git a/ModernKeePass/ResourceDictionaries/TextBoxWithButtonStyle.xaml b/ModernKeePass/ResourceDictionaries/TextBoxWithButtonStyle.xaml
index 6ad9db9..fce5830 100644
--- a/ModernKeePass/ResourceDictionaries/TextBoxWithButtonStyle.xaml
+++ b/ModernKeePass/ResourceDictionaries/TextBoxWithButtonStyle.xaml
@@ -300,7 +300,6 @@
                                         Grid.Column="1"
                                         Style="{StaticResource ActionButtonStyle}"
                                         Content="{TemplateBinding ButtonSymbol}"
-                                        IsEnabled="{TemplateBinding IsButtonEnabled}"
                                         Command="{TemplateBinding ButtonCommand}"
                                         CommandParameter="{TemplateBinding ButtonCommandParameter}">
                                     <ToolTipService.ToolTip>
diff --git a/ModernKeePass/Views/GroupDetailPage.xaml b/ModernKeePass/Views/GroupDetailPage.xaml
index 1b7229a..46a22db 100644
--- a/ModernKeePass/Views/GroupDetailPage.xaml
+++ b/ModernKeePass/Views/GroupDetailPage.xaml
@@ -134,7 +134,7 @@
                                                             </core:EventTriggerBehavior>
                                                         </interactivity:Interaction.Behaviors>
                                                     </MenuFlyoutItem>
-                                                    <MenuFlyoutItem x:Uid="EntryItemCopyUrl" IsEnabled="{Binding HasUrl}">
+                                                    <MenuFlyoutItem x:Uid="EntryItemCopyUrl" IsEnabled="{Binding IsValidUrl}">
                                                         <interactivity:Interaction.Behaviors>
                                                             <core:EventTriggerBehavior EventName="Click">
                                                                 <actions:NavigateToUrlAction Url="{Binding Url}" />
diff --git a/WinAppCommon/Actions/NavigateToUrlAction.cs b/WinAppCommon/Actions/NavigateToUrlAction.cs
index a8cd9dd..82a63d3 100644
--- a/WinAppCommon/Actions/NavigateToUrlAction.cs
+++ b/WinAppCommon/Actions/NavigateToUrlAction.cs
@@ -1,7 +1,5 @@
 using System;
 using Windows.UI.Xaml;
-using GalaSoft.MvvmLight.Views;
-using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Xaml.Interactivity;
 
 namespace ModernKeePass.Actions
@@ -24,10 +22,8 @@ namespace ModernKeePass.Actions
                 var uri = new Uri(Url);
                 return Windows.System.Launcher.LaunchUriAsync(uri).GetAwaiter().GetResult();
             }
-            catch (Exception ex)
+            catch (Exception)
             {
-                var dialogService = App.Services.GetRequiredService<IDialogService>();
-                dialogService.ShowError(ex, ex.Message, null, () => {}).Wait();
                 return false;
             }
         }
diff --git a/WinAppCommon/Controls/TextBoxWithButton.cs b/WinAppCommon/Controls/TextBoxWithButton.cs
index 7558e10..24b3999 100644
--- a/WinAppCommon/Controls/TextBoxWithButton.cs
+++ b/WinAppCommon/Controls/TextBoxWithButton.cs
@@ -69,19 +69,6 @@ namespace ModernKeePass.Controls
                 typeof(TextBoxWithButton),
                 new PropertyMetadata(null, (o, args) => { }));
 
-        public bool IsButtonEnabled
-        {
-            get { return (bool)GetValue(IsButtonEnabledProperty); }
-            set { SetValue(IsButtonEnabledProperty, value); }
-        }
-        public static readonly DependencyProperty IsButtonEnabledProperty =
-            DependencyProperty.Register(
-                nameof(IsButtonEnabled),
-                typeof(bool),
-                typeof(TextBoxWithButton),
-                new PropertyMetadata(true, (o, args) => { }));
-        
-
         public TextBoxWithButton()
         {
             DefaultStyleKey = typeof(TextBoxWithButton);