feat: Add favicon provider setting (Google vs DuckDuckGo)

README.md

@@ -277,6 +277,32 @@ The app generates a complete macOS Configuration Profile with:
 - ✅ **Export fails**: Verify write permissions for target directory
 - ✅ **App won't start**: Ensure macOS 15+ and try rebuilding
 
+## 🔍 Debugging & Verification
+
+### Verify Favicon Provider
+
+You can verify which favicon provider (Google or DuckDuckGo) the app is using in real-time:
+
+```bash
+# Live stream of favicon loading logs
+log stream --predicate 'subsystem == "ManagedFavsGenerator" AND category == "Favicons"' --level info --style compact
+```
+
+**Example output:**
+```
+Loading favicon for 'github.com' using Google provider: https://www.google.com/s2/favicons?domain=github.com&sz=32
+Loading favicon for 'microsoft.com' using DuckDuckGo provider: https://icons.duckduckgo.com/ip3/microsoft.com.ico
+```
+
+**To change the provider:**
+1. Open Settings (⌘,)
+2. Navigate to **Appearance** section
+3. Select your preferred **Favicon Provider**:
+   - **Google**: More reliable, comprehensive coverage
+   - **DuckDuckGo**: Privacy-focused, no tracking
+
+Changes take effect immediately without restart.
+
 ## 🛠️ Technical Details
 
 For developers and technical documentation, see **[AGENTS.md](../AGENTS.md)** - Development guidelines, architecture, and best practices.

Sources/ManagedFavsGenerator/ContentView.swift

@@ -1,5 +1,6 @@
 import SwiftUI
 import SwiftData
+import OSLog
 import AppKit
 
 struct ContentView: View {
@@ -345,16 +346,27 @@ struct FavoriteRowView: View {
     let onRemove: () -> Void
     @State private var isHovering = false
     @State private var isDragging = false
+    @AppStorage("faviconProvider") private var faviconProvider: FaviconProvider = .google
 
-    /// Generates the favicon URL using Google's favicon service
+    private let logger = Logger(subsystem: "ManagedFavsGenerator", category: "Favicons")
+
+    /// Generates the favicon URL using the selected provider
     private var faviconURL: URL? {
         guard let urlString = favorite.url,
               !urlString.isEmpty,
               let url = URL(string: urlString),
-              let domain = url.host else {
+              let host = url.host else {
             return nil
         }
-        return URL(string: "https://www.google.com/s2/favicons?domain=\(domain)&sz=32")
+
+        // Remove www. prefix if present
+        let domain = host.hasPrefix("www.") ? String(host.dropFirst(4)) : host
+        let faviconURL = faviconProvider.faviconURL(for: domain)
+
+        // Log which provider is being used (public for debugging)
+        logger.info("Loading favicon for '\(domain, privacy: .public)' using \(faviconProvider.rawValue, privacy: .public) provider: \(faviconURL?.absoluteString ?? "nil", privacy: .public)")
+
+        return faviconURL
     }
 
     var body: some View {

Sources/ManagedFavsGenerator/FaviconProvider.swift

@@ -0,0 +1,39 @@
+import Foundation
+
+/// Favicon service provider
+enum FaviconProvider: String, CaseIterable, Identifiable, Codable {
+    case google = "Google"
+    case duckduckgo = "DuckDuckGo"
+
+    var id: String { rawValue }
+
+    /// Display name for UI
+    var displayName: String {
+        switch self {
+        case .google:
+            return "Google"
+        case .duckduckgo:
+            return "DuckDuckGo (Privacy)"
+        }
+    }
+
+    /// Description for settings
+    var description: String {
+        switch self {
+        case .google:
+            return "More reliable, comprehensive coverage"
+        case .duckduckgo:
+            return "Privacy-focused, no tracking"
+        }
+    }
+
+    /// Generate favicon URL for a given domain
+    func faviconURL(for domain: String) -> URL? {
+        switch self {
+        case .google:
+            return URL(string: "https://www.google.com/s2/favicons?domain=\(domain)&sz=32")
+        case .duckduckgo:
+            return URL(string: "https://icons.duckduckgo.com/ip3/\(domain).ico")
+        }
+    }
+}

Sources/ManagedFavsGenerator/SettingsView.swift

@@ -3,6 +3,7 @@ import SwiftUI
 /// Settings View für App-Einstellungen
 struct SettingsView: View {
     @State private var viewModel = FavoritesViewModel()
+    @AppStorage("faviconProvider") private var faviconProvider: FaviconProvider = .google
 
     var body: some View {
         Form {
@@ -23,6 +24,30 @@ struct SettingsView: View {
 
             Divider()
 
+            Section {
+                Picker("Favicon Provider", selection: $faviconProvider) {
+                    ForEach(FaviconProvider.allCases) { provider in
+                        Text(provider.displayName).tag(provider)
+                    }
+                }
+                .help("Choose which service to use for loading favicons")
+
+                VStack(alignment: .leading, spacing: 4) {
+                    HStack(spacing: 8) {
+                        Image(systemName: "info.circle")
+                            .foregroundStyle(.secondary)
+                            .imageScale(.small)
+                        Text(faviconProvider.description)
+                            .font(.caption)
+                            .foregroundStyle(.secondary)
+                    }
+                }
+            } header: {
+                Text("Appearance")
+            }
+
+            Divider()
+
             Section {
                 LabeledContent("Version") {
                     Text("1.1.0")
@@ -38,7 +63,7 @@ struct SettingsView: View {
             }
         }
         .formStyle(.grouped)
-        .frame(width: 550, height: 300)
+        .frame(width: 550, height: 380)
     }
 }