fix: complete aria2 downloads via rpc

- Split monolithic SettingsView.swift into modular Settings panes
- Add SOCKS5 proxy support to proxy configuration
- Fix ListRowDensity application in DownloadTable
- Improve discoverability of global speed limit by adding it to Downloads pane

CHANGELOG.md

@@ -5,6 +5,41 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.5.5] - 2026-06-05
+
+### New features
+- Added a compact Download Properties inspector with a persistent progress summary and redownload-aware transfer settings.
+- Added authenticated metadata probing so batch previews can use custom or saved credentials.
+
+### Changes
+- Updated Download Properties disclosure sections so their full title row opens and closes them.
+- Compacted Add Downloads with a smaller summary strip, queue picker, and clearer per-file speed limit wording.
+- Expanded download table hit areas so double-clicks register across empty cell space.
+
+### Fixes
+- Fixed active downloads that could remain stuck at 99% until manually stopped by detecting `aria2` completion through RPC.
+- Fixed Chunk Map layout overlap in Download Properties.
+- Fixed Download Properties controls that implied completed or active file identity edits would apply immediately.
+
+## [0.5.4] - 2026-06-04
+
+### New features
+- Added direct double-click access to Download Properties for unfinished downloads.
+- Added a `make verify` command for local build and Firefox extension manifest checks.
+
+### Changes
+- Updated Firefox integration to probe the same local fallback ports used by the app.
+- Updated global speed limiting so changes apply to active downloads through `aria2` RPC.
+- Declared SwiftPM resources and added development fallbacks for app icons and Firefox extension copying.
+- Narrowed saved site-login matching so plain host patterns match exact hosts unless a wildcard is used.
+
+### Fixes
+- Fixed browser handoff failures when the default local extension port is unavailable.
+- Fixed dropped `Referer` headers from browser extension requests.
+- Fixed scheduler configurations that could be enabled without any runnable queue target.
+- Fixed unsafe file names from URLs, metadata responses, and manual property edits.
+- Fixed a possible duplicate-open glitch when double-clicking unfinished downloads.
+
 ## [0.5.3] - 2026-06-04
 
 ### New features

README.md

@@ -46,11 +46,12 @@ Dark mode is shown by default with privacy-safe example downloads. Light mode is
 - ⚡ **High-Speed Downloads:** Multi-segmented engine powered by `aria2c`.
 - 🎨 **Native SwiftUI:** Responsive Apple Silicon native UI.
 - 🎯 **Chunk Map Inspector:** Visually monitor active segment connections in real time.
+- 🧾 **Download Properties:** Inspect progress and tune per-download transfer settings.
 - 🗂️ **Smart Categories:** Automatic file organization (`Musics`, `Movies`, `Compressed`, etc.).
-- 🖱️ **Drag-and-Drop:** Seamlessly import URLs or text files directly into the app or Dock icon.
+- 🖱️ **Drag-and-Drop:** Import URLs, text files, and move queued downloads between queues.
 - 🛡️ **Reliability:** Automatic download recovery and retry handling.
 - 🔒 **Keychain Security:** Local macOS Keychain integration for site credentials.
-- ⚙️ **Power & Settings:** Cross-platform styled Settings UI, Speed Limiter, and system sleep prevention during active downloads.
+- ⚙️ **Power & Settings:** Cross-platform styled Settings UI, live Speed Limiter, and system sleep prevention during active downloads.
 
 ---
 

Sources/Firelink/AddDownloadsView.swift

@@ -43,10 +43,14 @@ struct AddDownloadsView: View {
                 .padding(16)
                 .background(.background)
         }
-        .frame(minWidth: 640, idealWidth: 680, minHeight: 500, idealHeight: 540)
+        .frame(minWidth: 640, idealWidth: 680, minHeight: 470, idealHeight: 500)
         .onChange(of: linkText) { _, newValue in
             scheduleMetadataRefresh(for: newValue)
         }
+        .onChange(of: metadataRequestSignature) { _, _ in
+            guard !DownloadURLParser.parse(linkText).isEmpty else { return }
+            scheduleMetadataRefresh(for: linkText)
+        }
         .onAppear {
             connectionsPerServer = Double(settings.perServerConnections)
             targetQueueID = controller.pendingAddQueueID ?? DownloadQueue.mainQueueID
@@ -72,7 +76,7 @@ struct AddDownloadsView: View {
                 .scrollContentBackground(.hidden)
                 .background(.quaternary.opacity(0.35))
                 .clipShape(RoundedRectangle(cornerRadius: 8))
-                .frame(minHeight: 82)
+                .frame(minHeight: 72)
 
             HStack {
                 Text("\(pendingDownloads.count) valid link\(pendingDownloads.count == 1 ? "" : "s") detected")
@@ -108,12 +112,24 @@ struct AddDownloadsView: View {
                     Button {
                         selectDestination()
                     } label: {
-                        Label("Select", systemImage: "folder.badge.plus")
+                        Label("Select...", systemImage: "folder.badge.plus")
                     }
                     .disabled(!overrideDestination)
                 }
             }
 
+            GridRow(alignment: .firstTextBaseline) {
+                Label("Queue", systemImage: "tray.full")
+                    .font(.subheadline.weight(.semibold))
+                Picker("Queue", selection: $targetQueueID) {
+                    ForEach(controller.queues) { queue in
+                        Text(queue.name).tag(queue.id)
+                    }
+                }
+                .labelsHidden()
+                .frame(maxWidth: 220, alignment: .leading)
+            }
+
             GridRow(alignment: .firstTextBaseline) {
                 Label("Connections per File", systemImage: "point.3.connected.trianglepath.dotted")
                     .font(.subheadline.weight(.semibold))
@@ -129,11 +145,11 @@ struct AddDownloadsView: View {
             }
 
             GridRow(alignment: .firstTextBaseline) {
-                Label("Speed Limit", systemImage: "speedometer")
+                Label("Speed Limit per File", systemImage: "speedometer")
                     .font(.subheadline.weight(.semibold))
                 VStack(alignment: .leading, spacing: 4) {
                     HStack(spacing: 8) {
-                        Toggle("Limit this batch", isOn: $speedLimitEnabled)
+                        Toggle("Limit each file", isOn: $speedLimitEnabled)
                             .toggleStyle(.switch)
                         Stepper(
                             "\(speedLimitKiBPerSecond) KiB/s",
@@ -173,12 +189,14 @@ struct AddDownloadsView: View {
     }
 
     private var summarySection: some View {
-        HStack(spacing: 8) {
-            SummaryTile(title: "Files", value: "\(pendingDownloads.count)", symbolName: "doc.on.doc")
-            SummaryTile(title: "Required", value: requiredSpaceText, symbolName: "externaldrive")
-            SummaryTile(title: "Free", value: freeSpaceText, symbolName: "internaldrive")
-            SummaryTile(title: "Unknown Sizes", value: "\(unknownSizeCount)", symbolName: "questionmark.circle")
-        }
+        CompactSummaryStrip(
+            metrics: [
+                SummaryMetric(title: "Files", value: "\(pendingDownloads.count)", symbolName: "doc.on.doc"),
+                SummaryMetric(title: "Required", value: requiredSpaceText, symbolName: "externaldrive"),
+                SummaryMetric(title: "Free", value: freeSpaceText, symbolName: "internaldrive"),
+                SummaryMetric(title: "Unknown", value: "\(unknownSizeCount)", symbolName: "questionmark.circle")
+            ]
+        )
     }
 
     private var previewSection: some View {
@@ -216,7 +234,7 @@ struct AddDownloadsView: View {
                 }
                 .width(110)
             }
-            .frame(minHeight: 135)
+            .frame(minHeight: 160)
         }
     }
 
@@ -378,6 +396,26 @@ struct AddDownloadsView: View {
         )
     }
 
+    private var metadataRequestSignature: String {
+        [
+            headerText,
+            cookieText,
+            useAuthorization ? "auth" : "no-auth",
+            authUsername,
+            authPassword
+        ].joined(separator: "\u{1f}")
+    }
+
+    private func metadataCredentials(for url: URL) -> DownloadCredentials? {
+        if useAuthorization {
+            let cleanUsername = authUsername.trimmingCharacters(in: .whitespacesAndNewlines)
+            guard !cleanUsername.isEmpty else { return nil }
+            return DownloadCredentials(username: cleanUsername, password: authPassword)
+        }
+
+        return settings.credentials(for: url)
+    }
+
     private func scheduleMetadataRefresh(for text: String) {
         metadataTask?.cancel()
         metadataTask = Task {
@@ -434,7 +472,12 @@ struct AddDownloadsView: View {
             var loaded: [PendingDownload] = []
             for url in urls {
                 guard !Task.isCancelled else { return }
-                let item = await DownloadMetadataFetcher.fetch(for: url, settings: settings, transferOptions: transferOptions)
+                let item = await DownloadMetadataFetcher.fetch(
+                    for: url,
+                    settings: settings,
+                    credentials: metadataCredentials(for: url),
+                    transferOptions: transferOptions
+                )
                 loaded.append(item)
                 await MainActor.run {
                     for loadedItem in loaded {
@@ -554,30 +597,41 @@ struct AddDownloadsView: View {
     }
 }
 
-private struct SummaryTile: View {
+private struct SummaryMetric: Identifiable {
     let title: String
     let value: String
     let symbolName: String
 
+    var id: String { title }
+}
+
+private struct CompactSummaryStrip: View {
+    let metrics: [SummaryMetric]
+
     var body: some View {
-        HStack(spacing: 10) {
-            Image(systemName: symbolName)
-                .font(.body)
-                .foregroundStyle(.secondary)
-                .frame(width: 20)
-            VStack(alignment: .leading, spacing: 2) {
-                Text(title)
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-                Text(value)
-                    .font(.subheadline.weight(.semibold).monospacedDigit())
-                    .lineLimit(1)
+        HStack(spacing: 12) {
+            ForEach(metrics) { metric in
+                HStack(spacing: 6) {
+                    Image(systemName: metric.symbolName)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                    Text(metric.title)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                    Text(metric.value)
+                        .font(.caption.weight(.semibold).monospacedDigit())
+                        .lineLimit(1)
+                }
+
+                if metric.id != metrics.last?.id {
+                    Divider()
+                        .frame(height: 14)
+                }
             }
             Spacer(minLength: 0)
         }
-        .padding(9)
-        .frame(maxWidth: .infinity)
-        .frame(minHeight: 52)
+        .padding(.horizontal, 10)
+        .padding(.vertical, 7)
         .background(.quaternary.opacity(0.35))
         .clipShape(RoundedRectangle(cornerRadius: 8))
     }

Sources/Firelink/AppSettings.swift

@@ -24,17 +24,24 @@ enum ProxyType: String, Codable, CaseIterable, Sendable {
     case http
     case https
     case ftp
+    case socks5
 
     var title: String {
         switch self {
         case .http: "HTTP"
-        case .https: "HTTPS"
-        case .ftp: "FTP"
+        case .https: "HTTPS (legacy)"
+        case .ftp: "FTP (legacy)"
+        case .socks5: "SOCKS5"
         }
     }
 
     var uriScheme: String {
-        rawValue
+        switch self {
+        case .http, .https, .ftp:
+            "http"
+        case .socks5:
+            "socks5"
+        }
     }
 }
 
@@ -48,6 +55,9 @@ struct ProxySettings: Codable, Equatable, Sendable {
         var copy = self
         copy.host = copy.host.trimmingCharacters(in: .whitespacesAndNewlines)
         copy.port = min(max(copy.port, 1), 65_535)
+        if copy.type != .http {
+            copy.type = .http
+        }
         return copy
     }
 
@@ -193,6 +203,10 @@ final class AppSettings: ObservableObject {
     }
 
     func addSiteLogin(urlPattern: String, username: String, password: String) {
+        saveSiteLogin(id: nil, urlPattern: urlPattern, username: username, password: password)
+    }
+
+    func saveSiteLogin(id: UUID?, urlPattern: String, username: String, password: String) {
         let pattern = urlPattern.trimmingCharacters(in: .whitespacesAndNewlines)
         let cleanUsername = username.trimmingCharacters(in: .whitespacesAndNewlines)
 
@@ -201,12 +215,39 @@ final class AppSettings: ObservableObject {
             return
         }
 
-        let login = SiteLogin(urlPattern: pattern, username: cleanUsername)
-        guard KeychainCredentialStore.setPassword(password, for: login.id) else {
-            message = "Could not save the password to Keychain."
+        if let id,
+           siteLogins.contains(where: { $0.id != id && $0.urlPattern.caseInsensitiveCompare(pattern) == .orderedSame }) {
+            message = "A login for \(pattern) already exists."
             return
         }
 
+        if let index = siteLogins.firstIndex(where: { login in
+            if let id {
+                return login.id == id
+            }
+            return login.urlPattern.caseInsensitiveCompare(pattern) == .orderedSame
+        }) {
+            let loginID = siteLogins[index].id
+            if !password.isEmpty, !KeychainCredentialStore.setPassword(password, for: loginID) {
+                message = "Could not save the password to Keychain."
+                return
+            }
+            siteLogins[index].urlPattern = pattern
+            siteLogins[index].username = cleanUsername
+            message = "Updated login for \(pattern)."
+            return
+        }
+
+        guard !password.isEmpty else {
+            message = "Add a password."
+            return
+        }
+
+        let login = SiteLogin(urlPattern: pattern, username: cleanUsername)
+        if !KeychainCredentialStore.setPassword(password, for: login.id) {
+            message = "Could not save the password to Keychain."
+            return
+        }
         siteLogins.append(login)
         message = "Added login for \(pattern)."
     }

Sources/Firelink/Aria2DownloadEngine.swift

@@ -147,6 +147,8 @@ final class Aria2DownloadEngine {
         let parser = Aria2ProgressParser()
         let outputBuffer = LockedDataBuffer()
         let errorBuffer = LockedDataBuffer()
+        let completionGate = CompletionGate(completion)
+        let completionMonitor = CompletionMonitor()
 
         outputPipe.fileHandleForReading.readabilityHandler = { handle in
             let data = handle.availableData
@@ -166,11 +168,12 @@ final class Aria2DownloadEngine {
         }
 
         process.terminationHandler = { finishedProcess in
+            completionMonitor.cancel()
             outputPipe.fileHandleForReading.readabilityHandler = nil
             errorPipe.fileHandleForReading.readabilityHandler = nil
 
             if finishedProcess.terminationStatus == 0 {
-                completion(.success(()))
+                completionGate.complete(.success(()))
                 return
             }
 
@@ -182,7 +185,7 @@ final class Aria2DownloadEngine {
                 .compactMap { $0 }
                 .filter { !$0.isEmpty }
                 .joined(separator: "\n")
-            completion(.failure(EngineError.launchFailed(message.isEmpty ? "exit code \(finishedProcess.terminationStatus)" : message)))
+            completionGate.complete(.failure(EngineError.launchFailed(message.isEmpty ? "exit code \(finishedProcess.terminationStatus)" : message)))
         }
 
         do {
@@ -195,13 +198,104 @@ final class Aria2DownloadEngine {
             throw EngineError.launchFailed(error.localizedDescription)
         }
 
+        completionMonitor.set(
+            Self.monitorCompletion(
+                rpcPort: rpcPort,
+                rpcSecret: rpcSecret,
+                process: process,
+                completionGate: completionGate
+            )
+        )
+
         return Handle(processIdentifier: process.processIdentifier, rpcPort: rpcPort, rpcSecret: rpcSecret) {
+            completionMonitor.cancel()
             if process.isRunning {
                 process.terminate()
             }
         }
     }
 
+    private static func monitorCompletion(
+        rpcPort: Int,
+        rpcSecret: String,
+        process: Process,
+        completionGate: CompletionGate
+    ) -> Task<Void, Never> {
+        Task.detached {
+            while !Task.isCancelled && process.isRunning {
+                if await completedDownloadStatus(rpcPort: rpcPort, rpcSecret: rpcSecret) {
+                    completionGate.complete(.success(()))
+                    if process.isRunning {
+                        process.terminate()
+                    }
+                    return
+                }
+
+                do {
+                    try await Task.sleep(nanoseconds: 1_000_000_000)
+                } catch {
+                    return
+                }
+            }
+        }
+    }
+
+    private static func completedDownloadStatus(rpcPort: Int, rpcSecret: String) async -> Bool {
+        guard let stopped = await rpcCall(
+            rpcPort: rpcPort,
+            rpcSecret: rpcSecret,
+            method: "aria2.tellStopped",
+            arguments: [0, 10, ["status", "errorCode", "completedLength", "totalLength"]]
+        ) as? [[String: Any]] else {
+            return false
+        }
+
+        if stopped.contains(where: { item in
+            (item["status"] as? String) == "complete"
+        }) {
+            return true
+        }
+
+        return stopped.contains { item in
+            guard (item["status"] as? String) == "error",
+                  (item["errorCode"] as? String) == "0",
+                  let completedLength = Int64(item["completedLength"] as? String ?? ""),
+                  let totalLength = Int64(item["totalLength"] as? String ?? ""),
+                  totalLength > 0 else {
+                return false
+            }
+            return completedLength >= totalLength
+        }
+    }
+
+    private static func rpcCall(
+        rpcPort: Int,
+        rpcSecret: String,
+        method: String,
+        arguments: [Any]
+    ) async -> Any? {
+        guard let url = URL(string: "http://127.0.0.1:\(rpcPort)/jsonrpc") else { return nil }
+        let payload: [String: Any] = [
+            "jsonrpc": "2.0",
+            "method": method,
+            "id": UUID().uuidString,
+            "params": ["token:\(rpcSecret)"] + arguments
+        ]
+
+        guard let data = try? JSONSerialization.data(withJSONObject: payload) else { return nil }
+        var request = URLRequest(url: url)
+        request.httpMethod = "POST"
+        request.addValue("application/json", forHTTPHeaderField: "Content-Type")
+        request.httpBody = data
+        request.timeoutInterval = 3
+
+        guard let (responseData, _) = try? await URLSession.shared.data(for: request),
+              let json = try? JSONSerialization.jsonObject(with: responseData) as? [String: Any] else {
+            return nil
+        }
+        return json["result"]
+    }
+
     static func updateSpeedLimit(handle: Handle, speedLimitKiBPerSecond: Int?) async {
         guard let url = URL(string: "http://127.0.0.1:\(handle.rpcPort)/jsonrpc") else { return }
 
@@ -212,7 +306,7 @@ final class Aria2DownloadEngine {
             "id": UUID().uuidString,
             "params": [
                 "token:\(handle.rpcSecret)",
-                ["max-download-limit": limitValue]
+                ["max-overall-download-limit": limitValue]
             ]
         ]
 
@@ -255,7 +349,7 @@ final class Aria2DownloadEngine {
         ]
 
         if let speedLimitKiBPerSecond, speedLimitKiBPerSecond > 0 {
-            arguments.append("--max-download-limit=\(speedLimitKiBPerSecond)K")
+            arguments.append("--max-overall-download-limit=\(speedLimitKiBPerSecond)K")
         }
 
         arguments.append(contentsOf: try proxyArguments(for: item, configuration: proxyConfiguration))
@@ -422,6 +516,47 @@ final class LockedDataBuffer: @unchecked Sendable {
     }
 }
 
+final class CompletionGate: @unchecked Sendable {
+    private let lock = NSLock()
+    private var didComplete = false
+    private let completion: @Sendable (Result<Void, Error>) -> Void
+
+    init(_ completion: @escaping @Sendable (Result<Void, Error>) -> Void) {
+        self.completion = completion
+    }
+
+    func complete(_ result: Result<Void, Error>) {
+        lock.lock()
+        let shouldComplete = !didComplete
+        if shouldComplete {
+            didComplete = true
+        }
+        lock.unlock()
+
+        guard shouldComplete else { return }
+        completion(result)
+    }
+}
+
+final class CompletionMonitor: @unchecked Sendable {
+    private let lock = NSLock()
+    private var task: Task<Void, Never>?
+
+    func set(_ task: Task<Void, Never>) {
+        lock.lock()
+        self.task = task
+        lock.unlock()
+    }
+
+    func cancel() {
+        lock.lock()
+        let task = self.task
+        self.task = nil
+        lock.unlock()
+        task?.cancel()
+    }
+}
+
 final class Aria2ProgressParser: @unchecked Sendable {
     private let percentageRegex = try? NSRegularExpression(pattern: #"\((\d+(?:\.\d+)?)%\)"#)
     private let connectionRegex = try? NSRegularExpression(pattern: #"CN:(\d+)"#)

Sources/Firelink/DownloadController.swift

@@ -10,6 +10,7 @@ final class DownloadController: ObservableObject {
     @Published var engineMessage = ""
     @Published var pendingPasteboardText: String?
     @Published var pendingReferer: String?
+    @Published var extensionServerPort: UInt16?
     var pendingAddQueueID: UUID?
 
     private let settings: AppSettings
@@ -217,6 +218,7 @@ final class DownloadController: ObservableObject {
         }
         automaticRetryCounts[item.id] = nil
         saveDownloads()
+        applySpeedLimitsToActiveDownloads()
         updateSleepActivity()
         pumpQueue()
     }
@@ -242,6 +244,7 @@ final class DownloadController: ObservableObject {
 
         engineMessage = "Paused \(activeItems.count) active download\(activeItems.count == 1 ? "" : "s")."
         saveDownloads()
+        applySpeedLimitsToActiveDownloads()
         updateSleepActivity()
         pumpQueue()
     }
@@ -262,6 +265,7 @@ final class DownloadController: ObservableObject {
         }
         automaticRetryCounts[item.id] = nil
         saveDownloads()
+        applySpeedLimitsToActiveDownloads()
         updateSleepActivity()
     }
 
@@ -330,6 +334,7 @@ final class DownloadController: ObservableObject {
         }
         automaticRetryCounts[item.id] = nil
         saveDownloads()
+        applySpeedLimitsToActiveDownloads()
         updateSleepActivity()
         pumpQueue()
     }
@@ -353,6 +358,7 @@ final class DownloadController: ObservableObject {
         downloads.removeAll { $0.id == item.id }
         automaticRetryCounts[item.id] = nil
         saveDownloads()
+        applySpeedLimitsToActiveDownloads()
         updateSleepActivity()
     }
 
@@ -511,6 +517,7 @@ final class DownloadController: ObservableObject {
                         }
 
                         self.pumpQueue()
+                        self.applySpeedLimitsToActiveDownloads()
                         self.updateSleepActivity()
                     }
                 }
@@ -522,9 +529,11 @@ final class DownloadController: ObservableObject {
                 $0.message = "Process \(handle.processIdentifier)"
             }
             saveDownloads()
+            applySpeedLimitsToActiveDownloads()
             updateSleepActivity()
         } catch {
             handleDownloadFailure(itemID: item.id, error: error)
+            applySpeedLimitsToActiveDownloads()
             updateSleepActivity()
             pumpQueue()
         }
@@ -569,25 +578,15 @@ final class DownloadController: ObservableObject {
     }
 
     private func normalizedSpeedLimit(_ value: Int?) -> Int? {
-        guard let value, value > 0 else { return nil }
-        return min(value, 10_485_760)
+        SpeedLimitPolicy.normalized(value)
     }
 
     private func effectiveSpeedLimitKiBPerSecond(for item: DownloadItem) -> Int? {
-        let itemLimit = normalizedSpeedLimit(item.speedLimitKiBPerSecond)
-        let globalLimit = normalizedSpeedLimit(settings.globalSpeedLimitKiBPerSecond)
-            .map { max(1, $0 / max(settings.maxConcurrentDownloads, 1)) }
-
-        switch (itemLimit, globalLimit) {
-        case let (.some(itemLimit), .some(globalLimit)):
-            return min(itemLimit, globalLimit)
-        case let (.some(itemLimit), .none):
-            return itemLimit
-        case let (.none, .some(globalLimit)):
-            return globalLimit
-        case (.none, .none):
-            return nil
-        }
+        SpeedLimitPolicy.effectiveLimit(
+            itemLimit: item.speedLimitKiBPerSecond,
+            globalLimit: settings.globalSpeedLimitKiBPerSecond,
+            activeDownloadCount: activeCount
+        )
     }
 
     private func applySpeedLimitsToActiveDownloads() {
@@ -886,6 +885,36 @@ private struct StoredDownloadState: Codable {
     var downloads: [DownloadItem]
 }
 
+enum SpeedLimitPolicy {
+    static let maximumKiBPerSecond = 10_485_760
+
+    static func normalized(_ value: Int?) -> Int? {
+        guard let value, value > 0 else { return nil }
+        return min(value, maximumKiBPerSecond)
+    }
+
+    static func effectiveLimit(
+        itemLimit: Int?,
+        globalLimit: Int?,
+        activeDownloadCount: Int
+    ) -> Int? {
+        let itemLimit = normalized(itemLimit)
+        let globalLimit = normalized(globalLimit)
+            .map { max(1, $0 / max(activeDownloadCount, 1)) }
+
+        switch (itemLimit, globalLimit) {
+        case let (.some(itemLimit), .some(globalLimit)):
+            return min(itemLimit, globalLimit)
+        case let (.some(itemLimit), .none):
+            return itemLimit
+        case let (.none, .some(globalLimit)):
+            return globalLimit
+        case (.none, .none):
+            return nil
+        }
+    }
+}
+
 private final class SleepActivityHandle: @unchecked Sendable {
     private let activity: NSObjectProtocol
 

Sources/Firelink/DownloadMetadataFetcher.swift

@@ -34,6 +34,7 @@ enum DownloadMetadataFetcher {
     static func fetch(
         for url: URL,
         settings: AppSettings,
+        credentials: DownloadCredentials? = nil,
         transferOptions: DownloadTransferOptions = DownloadTransferOptions()
     ) async -> PendingDownload {
         let initialName = FileClassifier.fileName(from: url)
@@ -56,7 +57,19 @@ enum DownloadMetadataFetcher {
         request.httpMethod = "HEAD"
         request.timeoutInterval = 12
         request.setValue("Firelink/0.1", forHTTPHeaderField: "User-Agent")
-        for header in transferOptions.requestHeaders.map(\.normalized) where !header.isEmpty {
+
+        let normalizedHeaders = transferOptions.requestHeaders.map(\.normalized).filter { !$0.isEmpty }
+        let hasAuthorizationHeader = normalizedHeaders.contains { $0.name.caseInsensitiveCompare("Authorization") == .orderedSame }
+        if let credentials, !credentials.isEmpty, !hasAuthorizationHeader {
+            let token = "\(credentials.username):\(credentials.password)"
+                .data(using: .utf8)?
+                .base64EncodedString()
+            if let token {
+                request.setValue("Basic \(token)", forHTTPHeaderField: "Authorization")
+            }
+        }
+
+        for header in normalizedHeaders {
             request.setValue(header.value, forHTTPHeaderField: header.name)
         }
         if let cookieHeader = transferOptions.cookieHeader?.trimmingCharacters(in: .whitespacesAndNewlines), !cookieHeader.isEmpty {

Sources/Firelink/DownloadPropertiesView.swift

@@ -47,6 +47,7 @@ struct DownloadPropertiesView: View {
     @State private var mirrorText: String
     @State private var errorMessage = ""
     @State private var showsAdvancedTransfer = false
+    @State private var showsChunkMap = false
 
     init(item: DownloadItem) {
         self.item = item
@@ -81,39 +82,87 @@ struct DownloadPropertiesView: View {
 
     var body: some View {
         VStack(spacing: 0) {
+            DownloadSummaryHeader(item: item)
+                .padding(.horizontal, 18)
+                .padding(.vertical, 12)
+
+            Divider()
+
             Form {
-                Section("Download") {
-                    TextField("URL", text: $urlText)
-                        .font(.system(.callout, design: .monospaced))
-                    TextField("File name", text: $fileName)
-                    HStack {
-                        TextField("Save location", text: $destinationPath)
-                            .font(.system(.callout, design: .monospaced))
-                        Button {
-                            selectDestination()
-                        } label: {
-                            Label("Select", systemImage: "folder.badge.plus")
-                        }
-                    }
-                    Stepper("Connections per file: \(connections)", value: $connections, in: 1...16)
-                    Toggle("Limit speed", isOn: $speedLimitEnabled)
-                    if speedLimitEnabled {
-                        Stepper(
-                            "Speed cap: \(speedLimitKiBPerSecond) KiB/s",
-                            value: $speedLimitKiBPerSecond,
-                            in: 1...10_485_760,
-                            step: 128
-                        )
+                if let noticeText {
+                    Section {
+                        Label(noticeText, systemImage: noticeSystemImage)
+                            .font(.caption)
+                            .foregroundStyle(.secondary)
                     }
                 }
 
-                Section("Site Login") {
+                Section("Download") {
+                    Grid(alignment: .leading, horizontalSpacing: 12, verticalSpacing: 8) {
+                        GridRow {
+                            Text("URL")
+                                .foregroundStyle(.secondary)
+                            TextField("URL", text: $urlText)
+                                .font(.system(.callout, design: .monospaced))
+                                .disabled(fileIdentityLocked)
+                        }
+
+                        GridRow {
+                            Text("File name")
+                                .foregroundStyle(.secondary)
+                            TextField("File name", text: $fileName)
+                                .disabled(fileIdentityLocked)
+                        }
+
+                        GridRow {
+                            Text("Save location")
+                                .foregroundStyle(.secondary)
+                            HStack(spacing: 8) {
+                                TextField("Save location", text: $destinationPath)
+                                    .font(.system(.callout, design: .monospaced))
+                                    .disabled(fileIdentityLocked)
+                                Button {
+                                    selectDestination()
+                                } label: {
+                                    Label("Select", systemImage: "folder.badge.plus")
+                                }
+                                .disabled(fileIdentityLocked)
+                            }
+                        }
+
+                        GridRow {
+                            Text("Connections")
+                                .foregroundStyle(.secondary)
+                            Stepper("\(connections) per file", value: $connections, in: 1...16)
+                                .disabled(transferSettingsLocked)
+                        }
+
+                        GridRow {
+                            Text("Speed")
+                                .foregroundStyle(.secondary)
+                            HStack {
+                                Toggle("Limit", isOn: $speedLimitEnabled)
+                                if speedLimitEnabled {
+                                    Stepper(
+                                        "\(speedLimitKiBPerSecond) KiB/s",
+                                        value: $speedLimitKiBPerSecond,
+                                        in: 1...10_485_760,
+                                        step: 128
+                                    )
+                                }
+                            }
+                        }
+                    }
+                }
+
+                Section(item.status == .completed ? "Site Login for Redownload" : "Site Login") {
                     Picker("Login", selection: $loginMode) {
                         ForEach(LoginMode.allCases) { mode in
                             Text(mode.rawValue).tag(mode)
                         }
                     }
                     .pickerStyle(.segmented)
+                    .disabled(transferSettingsLocked)
 
                     if loginMode == .matching {
                         Text(matchingLoginText)
@@ -121,48 +170,64 @@ struct DownloadPropertiesView: View {
                             .foregroundStyle(.secondary)
                     } else if loginMode == .custom {
                         TextField("Username", text: $username)
+                            .disabled(transferSettingsLocked)
                         SecureField("Password", text: $password)
+                            .disabled(transferSettingsLocked)
                     }
                 }
 
-                DisclosureGroup("Advanced Transfer", isExpanded: $showsAdvancedTransfer) {
-                    Toggle("Checksum", isOn: $checksumEnabled)
-                    if checksumEnabled {
-                        Picker("Algorithm", selection: $checksumAlgorithm) {
-                            ForEach(ChecksumAlgorithm.allCases) { algorithm in
-                                Text(algorithm.title).tag(algorithm)
+                Section {
+                    CollapsibleGroup(title: advancedTransferTitle, isExpanded: $showsAdvancedTransfer) {
+                        Grid(alignment: .leading, horizontalSpacing: 12, verticalSpacing: 8) {
+                            GridRow {
+                                Text("Checksum")
+                                    .foregroundStyle(.secondary)
+                                Toggle("Verify", isOn: $checksumEnabled)
+                                .disabled(transferSettingsLocked)
+                            }
+
+                            if checksumEnabled {
+                                GridRow {
+                                    Text("Algorithm")
+                                        .foregroundStyle(.secondary)
+                                    Picker("Algorithm", selection: $checksumAlgorithm) {
+                                        ForEach(ChecksumAlgorithm.allCases) { algorithm in
+                                            Text(algorithm.title).tag(algorithm)
+                                        }
+                                    }
+                                    .disabled(transferSettingsLocked)
+                                }
+
+                                GridRow {
+                                    Text("Digest")
+                                        .foregroundStyle(.secondary)
+                                    TextField("Expected digest", text: $checksumValue)
+                                        .font(.system(.callout, design: .monospaced))
+                                        .disabled(transferSettingsLocked)
+                                }
+                            }
+
+                            GridRow {
+                                Text("Cookies")
+                                    .foregroundStyle(.secondary)
+                                TextField("Cookies", text: $cookieText)
+                                    .font(.system(.callout, design: .monospaced))
+                                    .disabled(transferSettingsLocked)
                             }
                         }
-                        TextField("Expected digest", text: $checksumValue)
-                            .font(.system(.callout, design: .monospaced))
+
+                        CompactEditor(title: "Headers", text: $headerText)
+                            .disabled(transferSettingsLocked)
+                        CompactEditor(title: "Mirrors", text: $mirrorText)
+                            .disabled(transferSettingsLocked)
                     }
-
-                    VStack(alignment: .leading, spacing: 6) {
-                        Text("Headers")
-                        TextEditor(text: $headerText)
-                            .font(.system(.callout, design: .monospaced))
-                            .frame(minHeight: 60)
-                    }
-
-                    TextField("Cookies", text: $cookieText)
-                        .font(.system(.callout, design: .monospaced))
-
-                    VStack(alignment: .leading, spacing: 6) {
-                        Text("Mirrors")
-                        TextEditor(text: $mirrorText)
-                            .font(.system(.callout, design: .monospaced))
-                            .frame(minHeight: 60)
-                    }
-                }
-
-                Section("Progress") {
-                    ProgressView(value: item.progress)
-                    InfoGrid(item: item)
                 }
 
                 if item.status == .downloading && item.rpcPort != nil {
-                    Section("Chunk Map") {
-                        ChunkMapView(item: item)
+                    Section {
+                        CollapsibleGroup(title: "Chunk Map", isExpanded: $showsChunkMap) {
+                            ChunkMapView(item: item)
+                        }
                     }
                 }
             }
@@ -185,10 +250,82 @@ struct DownloadPropertiesView: View {
                 }
                 .buttonStyle(.borderedProminent)
             }
-            .padding(14)
+            .padding(12)
             .background(.bar)
         }
-        .frame(width: 720, height: 720)
+        .frame(width: 720, height: 580)
+    }
+
+    private var fileIdentityLocked: Bool {
+        item.status == .completed || item.status == .downloading
+    }
+
+    private var transferSettingsLocked: Bool {
+        item.status == .downloading
+    }
+
+    private var noticeText: String? {
+        switch item.status {
+        case .completed:
+            return "File identity is read-only. Transfer settings are saved for redownload."
+        case .downloading:
+            return "Only the speed limit applies to the current transfer. Other settings can be changed after stopping or pausing."
+        default:
+            return nil
+        }
+    }
+
+    private var noticeSystemImage: String {
+        item.status == .completed ? "checkmark.circle" : "bolt.horizontal.circle"
+    }
+
+    private var advancedTransferTitle: String {
+        item.status == .completed ? "Advanced Transfer for Redownload" : "Advanced Transfer"
+    }
+
+    private struct CompactEditor: View {
+        let title: String
+        @Binding var text: String
+
+        var body: some View {
+            VStack(alignment: .leading, spacing: 5) {
+                Text(title)
+                    .foregroundStyle(.secondary)
+                TextEditor(text: $text)
+                    .font(.system(.callout, design: .monospaced))
+                    .frame(minHeight: 44, maxHeight: 54)
+            }
+        }
+    }
+
+    private struct CollapsibleGroup<Content: View>: View {
+        let title: String
+        @Binding var isExpanded: Bool
+        @ViewBuilder var content: () -> Content
+
+        var body: some View {
+            VStack(alignment: .leading, spacing: isExpanded ? 10 : 0) {
+                Button {
+                    isExpanded.toggle()
+                } label: {
+                    HStack(spacing: 6) {
+                        Image(systemName: isExpanded ? "chevron.down" : "chevron.right")
+                            .font(.caption)
+                            .foregroundStyle(.secondary)
+                            .frame(width: 12)
+                        Text(title)
+                        Spacer(minLength: 0)
+                    }
+                    .contentShape(Rectangle())
+                }
+                .buttonStyle(.plain)
+
+                if isExpanded {
+                    content()
+                        .padding(.leading, 18)
+                }
+            }
+        }
     }
 
     private var matchingLoginText: String {
@@ -285,31 +422,69 @@ struct DownloadPropertiesView: View {
     }
 }
 
-private struct InfoGrid: View {
+private struct DownloadSummaryHeader: View {
     let item: DownloadItem
 
     var body: some View {
-        Grid(alignment: .leading, horizontalSpacing: 18, verticalSpacing: 8) {
-            info("Status", item.status.rawValue)
-            info("Progress", item.progress.formatted(.percent.precision(.fractionLength(0))))
-            info("Size", ByteFormatter.string(item.sizeBytes))
-            info("Speed", item.speedText)
-            info("ETA", item.etaText)
-            info("Live connections", "\(item.connectionCount)")
-            info("Speed cap", item.speedLimitText)
-            info("Date added", item.createdAt.formatted(date: .abbreviated, time: .shortened))
-            info("Last try", item.lastTryAt?.formatted(date: .abbreviated, time: .shortened) ?? "-")
-            info("Category", item.category.rawValue)
-            info("Destination", item.destinationPath)
+        VStack(alignment: .leading, spacing: 8) {
+            HStack(alignment: .firstTextBaseline, spacing: 12) {
+                Text(item.fileName)
+                    .font(.headline)
+                    .lineLimit(1)
+                    .truncationMode(.middle)
+                Spacer()
+                Label(item.status.rawValue, systemImage: item.category.symbolName)
+                    .foregroundStyle(statusColor)
+            }
+
+            ProgressView(value: item.progress)
+
+            Grid(alignment: .leading, horizontalSpacing: 18, verticalSpacing: 5) {
+                GridRow {
+                    summary("Progress", item.progress.formatted(.percent.precision(.fractionLength(0))))
+                    summary("Size", ByteFormatter.string(item.sizeBytes))
+                    summary("Speed", item.speedText)
+                    summary("ETA", item.etaText)
+                }
+                GridRow {
+                    summary("Live connections", "\(item.connectionCount)")
+                    summary("Speed cap", item.speedLimitText)
+                    summary("Category", item.category.rawValue)
+                    summary("Last try", item.lastTryAt?.formatted(date: .abbreviated, time: .shortened) ?? "-")
+                }
+                GridRow {
+                    summary("Date added", item.createdAt.formatted(date: .abbreviated, time: .shortened))
+                        .gridCellColumns(2)
+                    summary("Destination", item.destinationPath)
+                        .gridCellColumns(2)
+                }
+            }
+            .font(.caption)
         }
     }
 
-    private func info(_ label: String, _ value: String) -> some View {
-        GridRow {
+    private var statusColor: Color {
+        switch item.status {
+        case .queued:
+            .secondary
+        case .downloading:
+            .accentColor
+        case .paused:
+            .orange
+        case .completed:
+            .green
+        case .failed, .canceled:
+            .red
+        }
+    }
+
+    private func summary(_ label: String, _ value: String) -> some View {
+        HStack(spacing: 4) {
             Text(label)
                 .foregroundStyle(.secondary)
             Text(value)
-                .lineLimit(2)
+                .lineLimit(1)
+                .truncationMode(.middle)
         }
     }
 }

Sources/Firelink/DownloadTable.swift

@@ -104,6 +104,7 @@ struct DownloadTable: View {
                 }
                 .width(min: 100, ideal: 155)
             }
+            .environment(\.defaultMinListRowHeight, settings.listRowDensity.minRowHeight)
             .contextMenu(forSelectionType: DownloadItem.ID.self) { itemIDs in
                 rowContextMenu(for: itemIDs)
             }
@@ -161,6 +162,7 @@ struct DownloadTable: View {
         @ViewBuilder content: () -> Content
     ) -> some View {
         content()
+            .frame(maxWidth: .infinity, alignment: .leading)
             .contentShape(Rectangle())
             .onTapGesture(count: 2) {
                 performPrimaryAction(for: item)

Sources/Firelink/FirelinkApp.swift

@@ -19,6 +19,7 @@ struct FirelinkApp: App {
         
         extensionServer = LocalExtensionServer(downloadController: controller)
         extensionServer?.start()
+        controller.extensionServerPort = extensionServer?.port
     }
 
     var body: some Scene {

Sources/Firelink/Settings/AboutSettingsPane.swift

@@ -0,0 +1,179 @@
+import AppKit
+import SwiftUI
+
+struct AboutSettingsPane: View {
+    @StateObject private var updateChecker = AppUpdateChecker()
+    @State private var availableUpdate: AvailableUpdate?
+
+    private let developerProfileURL = URL(string: "https://github.com/nimbold")!
+    private let projectURL = URL(string: "https://github.com/nimbold/Firelink")!
+    private let aria2URL = URL(string: "https://aria2.github.io/")!
+    private let licenseURL = URL(string: "https://github.com/nimbold/Firelink/blob/main/LICENSE")!
+
+    private var appVersion: String {
+        Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "0.1.0"
+    }
+
+    private var buildNumber: String {
+        Bundle.main.infoDictionary?["CFBundleVersion"] as? String ?? "Development"
+    }
+
+    var body: some View {
+        Form {
+            Section {
+                HStack(alignment: .center, spacing: 14) {
+                    Image(nsImage: NSApp.applicationIconImage)
+                        .resizable()
+                        .frame(width: 56, height: 56)
+                        .accessibilityHidden(true)
+
+                    VStack(alignment: .leading, spacing: 4) {
+                        Text("Firelink")
+                            .font(.title2.weight(.semibold))
+                        Text("Version \(appVersion)")
+                            .foregroundStyle(.secondary)
+                        Text("A native macOS download manager for fast, organized, segmented transfers.")
+                            .font(.caption)
+                            .foregroundStyle(.secondary)
+                    }
+                }
+                .padding(.vertical, 4)
+            }
+
+            Section("Updates") {
+                LabeledContent("Status") {
+                    Label(updateChecker.status.message, systemImage: updateStatusSymbol)
+                        .foregroundStyle(updateStatusColor)
+                }
+
+                if let lastChecked = updateChecker.lastChecked {
+                    LabeledContent("Last checked") {
+                        Text(lastChecked, format: .dateTime.month().day().hour().minute())
+                            .foregroundStyle(.secondary)
+                    }
+                }
+
+                HStack {
+                    Button {
+                        Task {
+                            await updateChecker.checkForUpdates(currentVersion: appVersion)
+                        }
+                    } label: {
+                        Label("Check for Updates", systemImage: "arrow.clockwise")
+                    }
+                    .disabled(updateChecker.status == .checking)
+
+                    Button {
+                        openReleasesPage()
+                    } label: {
+                        Label("Open Releases", systemImage: "arrow.up.right.square")
+                    }
+
+                    Spacer()
+                }
+
+                if case .updateAvailable(_, let releaseURL) = updateChecker.status {
+                    Button {
+                        NSWorkspace.shared.open(releaseURL)
+                    } label: {
+                        Label("Download Latest Version", systemImage: "square.and.arrow.down")
+                    }
+                    .buttonStyle(.borderedProminent)
+                }
+            }
+
+            Section("Developer") {
+                LabeledContent("Created by") {
+                    Text("NimBold")
+                }
+
+                LabeledContent("Source") {
+                    Link("nimbold/Firelink", destination: projectURL)
+                }
+            }
+
+            Section("Credits") {
+                LabeledContent("Download engine") {
+                    Link("aria2", destination: aria2URL)
+                }
+
+                Text("Firelink uses aria2c for segmented HTTP, HTTPS, FTP, and SFTP downloads.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+
+            Section("Legal") {
+                LabeledContent("License") {
+                    Link("MIT License", destination: licenseURL)
+                }
+
+                Text("Copyright © 2026 NimBold. Firelink is released under the MIT License.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+        }
+        .formStyle(.grouped)
+        .onChange(of: updateChecker.status) { _, status in
+            if case .updateAvailable(let latestVersion, let releaseURL) = status {
+                availableUpdate = AvailableUpdate(version: latestVersion, url: releaseURL)
+            }
+        }
+        .alert("Update Available", isPresented: Binding(
+            get: { availableUpdate != nil },
+            set: { isPresented in
+                if !isPresented {
+                    availableUpdate = nil
+                }
+            }
+        )) {
+            Button("Not Now", role: .cancel) {
+                availableUpdate = nil
+            }
+            Button("Yes") {
+                if let releaseURL = availableUpdate?.url {
+                    NSWorkspace.shared.open(releaseURL)
+                }
+                availableUpdate = nil
+            }
+        } message: {
+            Text("Firelink version \(availableUpdate?.version ?? "") is available. Do you want to open the download page?")
+        }
+    }
+
+    private var updateStatusSymbol: String {
+        switch updateChecker.status {
+        case .idle:
+            "sparkle.magnifyingglass"
+        case .checking:
+            "arrow.clockwise"
+        case .upToDate:
+            "checkmark.seal.fill"
+        case .updateAvailable:
+            "arrow.down.circle.fill"
+        case .unavailable:
+            "exclamationmark.triangle.fill"
+        }
+    }
+
+    private var updateStatusColor: Color {
+        switch updateChecker.status {
+        case .idle, .checking:
+            .secondary
+        case .upToDate:
+            .green
+        case .updateAvailable:
+            .accentColor
+        case .unavailable:
+            .orange
+        }
+    }
+
+    private func openReleasesPage() {
+        NSWorkspace.shared.open(updateChecker.releasesURL)
+    }
+
+    private struct AvailableUpdate: Equatable {
+        var version: String
+        var url: URL
+    }
+}

Sources/Firelink/Settings/DownloadSettingsPane.swift

@@ -0,0 +1,46 @@
+import SwiftUI
+
+struct DownloadSettingsPane: View {
+    @EnvironmentObject private var settings: AppSettings
+
+    var body: some View {
+        Form {
+            Section {
+                Stepper(
+                    "Default connections per server: \(settings.perServerConnections)",
+                    value: $settings.perServerConnections,
+                    in: 1...16
+                )
+                Text("Used as the default for new downloads. The Add Downloads window can override it per batch.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+
+                Stepper(
+                    "Parallel downloads: \(settings.maxConcurrentDownloads)",
+                    value: $settings.maxConcurrentDownloads,
+                    in: 1...12
+                )
+                Text("Controls how many files Firelink downloads at the same time.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+            
+            Section {
+                LabeledContent("Global speed limit") {
+                    HStack {
+                        TextField("0", value: $settings.globalSpeedLimitKiBPerSecond, format: .number)
+                            .textFieldStyle(.roundedBorder)
+                            .multilineTextAlignment(.trailing)
+                            .frame(width: 80)
+                        Text("KiB/s")
+                            .foregroundStyle(.secondary)
+                    }
+                }
+                Text("Set to 0 for unlimited speed. This limit is divided across currently active downloads.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+        }
+        .formStyle(.grouped)
+    }
+}

Sources/Firelink/Settings/EngineSettingsPane.swift

@@ -0,0 +1,46 @@
+import SwiftUI
+import AppKit
+
+struct EngineSettingsPane: View {
+    @State private var version = "Checking..."
+
+    private var executableURL: URL? {
+        Aria2DownloadEngine.findExecutable()
+    }
+
+    var body: some View {
+        Form {
+            Section {
+                LabeledContent("Status") {
+                    Label(
+                        executableURL == nil ? "Missing" : "Ready",
+                        systemImage: executableURL == nil ? "exclamationmark.triangle.fill" : "checkmark.seal.fill"
+                    )
+                    .foregroundStyle(executableURL == nil ? .orange : .green)
+                }
+
+                LabeledContent("Binary") {
+                    Text(executableURL?.path ?? "Not found")
+                        .font(.system(.body, design: .monospaced))
+                        .textSelection(.enabled)
+                }
+
+                LabeledContent("Version") {
+                    Text(version)
+                        .font(.system(.body, design: .monospaced))
+                        .textSelection(.enabled)
+                }
+
+                if executableURL == nil {
+                    Text("Install aria2 with Homebrew or bundle aria2c inside the app resources.")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+            }
+        }
+        .formStyle(.grouped)
+        .task {
+            version = await Aria2DownloadEngine.versionString() ?? "Unavailable"
+        }
+    }
+}

Sources/Firelink/Settings/IntegrationSettingsPane.swift

@@ -0,0 +1,187 @@
+import AppKit
+import SwiftUI
+
+struct IntegrationSettingsPane: View {
+    @EnvironmentObject private var controller: DownloadController
+    @State private var copiedExtensionURL: URL?
+    @State private var installMessage = ""
+
+    var body: some View {
+        Form {
+            Section {
+                HStack(alignment: .center, spacing: 14) {
+                    Image(systemName: "puzzlepiece.extension")
+                        .resizable()
+                        .frame(width: 48, height: 48)
+                        .foregroundStyle(.orange)
+                        .accessibilityHidden(true)
+
+                    VStack(alignment: .leading, spacing: 4) {
+                        Text("Firefox Extension")
+                            .font(.title2.weight(.semibold))
+                        Text("Capture downloads directly from your browser.")
+                            .foregroundStyle(.secondary)
+                    }
+                }
+                .padding(.vertical, 4)
+            }
+            
+            Section("Installation") {
+                HStack(spacing: 10) {
+                    Button {
+                        copyExtensionToDownloads()
+                    } label: {
+                        Label("Copy to Downloads", systemImage: "folder.badge.plus")
+                    }
+                    
+                    Button {
+                        showCopiedExtensionInFinder()
+                    } label: {
+                        Label("Show Copied Folder", systemImage: "folder.fill")
+                    }
+                    .disabled(copiedExtensionURL == nil)
+
+                    Button {
+                        openFirefoxDebugging()
+                    } label: {
+                        Label("Open Firefox Debugging", systemImage: "link")
+                    }
+                }
+                .buttonStyle(.borderedProminent)
+
+                if !installMessage.isEmpty {
+                    Text(installMessage)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+                
+                Text("Firelink Companion has been submitted to Mozilla and is awaiting review. Until it is approved, load the extension manually:\n1. Click 'Copy to Downloads'.\n2. Click 'Open Firefox Debugging'.\n3. Click 'This Firefox' on the left sidebar.\n4. Click 'Load Temporary Add-on' and select manifest.json inside Downloads/Firelink Firefox Extension.\n\nKeep the copied folder while Firefox is running. Temporary add-ons are removed when Firefox restarts, so you can delete the folder after restart or after installing the approved add-on.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+
+            Section("Diagnostics") {
+                LabeledContent("Local receiver") {
+                    if let port = controller.extensionServerPort {
+                        Label("Listening on 127.0.0.1:\(port)", systemImage: "checkmark.seal.fill")
+                            .foregroundStyle(.green)
+                    } else {
+                        Label("Not listening", systemImage: "exclamationmark.triangle.fill")
+                            .foregroundStyle(.orange)
+                    }
+                }
+
+                LabeledContent("Copied folder") {
+                    if FileManager.default.fileExists(atPath: downloadsExtensionURL.appendingPathComponent("manifest.json").path) {
+                        Label("Ready", systemImage: "checkmark.seal.fill")
+                            .foregroundStyle(.green)
+                    } else {
+                        Label("Not copied", systemImage: "folder.badge.questionmark")
+                            .foregroundStyle(.secondary)
+                    }
+                }
+            }
+            
+            Section("Permissions & Privacy") {
+                Text("The Firelink extension uses download, context menu, storage, active tab, scripting, and local Firelink endpoint permissions. It reads the active tab URL for per-site settings and explicit right-click actions, and forwards download URLs only when you use a Firelink action or enable global capture.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+        }
+        .formStyle(.grouped)
+        .onAppear {
+            if FileManager.default.fileExists(atPath: downloadsExtensionURL.path) {
+                copiedExtensionURL = downloadsExtensionURL
+            }
+        }
+    }
+    
+    private var downloadsExtensionURL: URL {
+        let downloads = FileManager.default.urls(for: .downloadsDirectory, in: .userDomainMask).first
+            ?? URL(fileURLWithPath: NSHomeDirectory()).appendingPathComponent("Downloads")
+        return downloads.appendingPathComponent("Firelink Firefox Extension", isDirectory: true)
+    }
+
+    private func copyExtensionToDownloads() {
+        guard let sourceURL = bundledFirefoxExtensionURL() else {
+            installMessage = "The bundled Firefox extension folder was not found."
+            return
+        }
+
+        let destinationURL = downloadsExtensionURL
+        do {
+            if FileManager.default.fileExists(atPath: destinationURL.path) {
+                try FileManager.default.removeItem(at: destinationURL)
+            }
+
+            try copyFirefoxExtension(from: sourceURL, to: destinationURL)
+            copiedExtensionURL = destinationURL
+            installMessage = "Copied to \(destinationURL.path). Select manifest.json from this folder in Firefox."
+            showCopiedExtensionInFinder()
+        } catch {
+            installMessage = "Could not copy the extension to Downloads: \(error.localizedDescription)"
+        }
+    }
+
+    private func bundledFirefoxExtensionURL() -> URL? {
+        if let bundled = Bundle.main.url(forResource: "FirefoxExtension", withExtension: nil) {
+            return bundled
+        }
+
+        let sourceFile = URL(fileURLWithPath: #filePath)
+        let projectRoot = sourceFile
+            .deletingLastPathComponent()
+            .deletingLastPathComponent()
+            .deletingLastPathComponent()
+        let sourceTreeExtension = projectRoot.appendingPathComponent("Extensions/Firefox", isDirectory: true)
+        return FileManager.default.fileExists(atPath: sourceTreeExtension.appendingPathComponent("manifest.json").path)
+            ? sourceTreeExtension
+            : nil
+    }
+
+    private func copyFirefoxExtension(from sourceURL: URL, to destinationURL: URL) throws {
+        let fileManager = FileManager.default
+        try fileManager.createDirectory(at: destinationURL, withIntermediateDirectories: true)
+
+        for component in ["background.js", "content.js", "manifest.json", "icons", "popup"] {
+            try fileManager.copyItem(
+                at: sourceURL.appendingPathComponent(component),
+                to: destinationURL.appendingPathComponent(component)
+            )
+        }
+    }
+
+    private func showCopiedExtensionInFinder() {
+        let folderURL = copiedExtensionURL ?? downloadsExtensionURL
+        let manifestURL = folderURL.appendingPathComponent("manifest.json")
+        if FileManager.default.fileExists(atPath: manifestURL.path) {
+            NSWorkspace.shared.activateFileViewerSelecting([manifestURL])
+        } else if FileManager.default.fileExists(atPath: folderURL.path) {
+            NSWorkspace.shared.activateFileViewerSelecting([folderURL])
+        }
+    }
+
+    private func openFirefoxDebugging() {
+        let bundleIDs = [
+            "org.mozilla.firefoxdeveloperedition",
+            "org.mozilla.firefox",
+            "org.mozilla.nightly"
+        ]
+        
+        let workspace = NSWorkspace.shared
+        for id in bundleIDs {
+            if let appURL = workspace.urlForApplication(withBundleIdentifier: id) {
+                let process = Process()
+                process.executableURL = URL(fileURLWithPath: "/usr/bin/open")
+                process.arguments = ["-a", appURL.path, "about:debugging"]
+                try? process.run()
+                return
+            }
+        }
+        
+        // Fallback
+        if let fallbackURL = URL(string: "about:debugging") {
+            workspace.open(fallbackURL)
+        }
+    }
+}

Sources/Firelink/Settings/LocationsSettingsPane.swift

@@ -0,0 +1,148 @@
+import AppKit
+import SwiftUI
+
+struct LocationsSettingsPane: View {
+    @EnvironmentObject private var settings: AppSettings
+
+    var body: some View {
+        Form {
+            Section {
+                ForEach(DownloadCategory.allCases, id: \.self) { category in
+                    DirectoryPickerRow(category: category)
+                }
+
+                HStack {
+                    Spacer()
+                    Button("Reset Defaults") {
+                        settings.resetDirectories()
+                    }
+                }
+            }
+        }
+        .formStyle(.grouped)
+    }
+}
+
+struct DirectoryPickerRow: View {
+    @EnvironmentObject private var settings: AppSettings
+    let category: DownloadCategory
+
+    @State private var path = ""
+    @State private var message = ""
+
+    var body: some View {
+        LabeledContent {
+            VStack(alignment: .leading, spacing: 4) {
+                HStack(spacing: 8) {
+                    TextField("Folder path", text: $path)
+                        .textFieldStyle(.roundedBorder)
+                        .font(.system(.body, design: .monospaced))
+                        .onSubmit {
+                            applyPath()
+                        }
+
+                    Button {
+                        applyPath()
+                    } label: {
+                        Label("Apply", systemImage: "checkmark")
+                    }
+                    .disabled(path.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty)
+
+                    Button {
+                        selectFolder()
+                    } label: {
+                        Label("Select", systemImage: "folder.badge.plus")
+                    }
+                }
+
+                Text(message.isEmpty ? statusMessage(for: path) : message)
+                    .font(.caption)
+                    .foregroundStyle(message.isEmpty ? .secondary : .primary)
+            }
+        } label: {
+            Label(category.rawValue, systemImage: category.symbolName)
+        }
+        .onAppear {
+            syncPathFromSettings()
+        }
+        .onChange(of: settings.downloadDirectories[category]) { _, _ in
+            syncPathFromSettings()
+        }
+    }
+
+    private func selectFolder() {
+        let panel = NSOpenPanel()
+        panel.canChooseFiles = false
+        panel.canChooseDirectories = true
+        panel.allowsMultipleSelection = false
+        panel.canCreateDirectories = true
+        panel.directoryURL = settings.destinationDirectory(for: category)
+
+        if panel.runModal() == .OK, let url = panel.url {
+            path = url.path
+            settings.setDirectory(url.path, for: category)
+            message = "Saved."
+        }
+    }
+
+    private func syncPathFromSettings() {
+        path = settings.downloadDirectories[category] ?? settings.destinationDirectory(for: category).path
+        message = ""
+    }
+
+    private func applyPath() {
+        let trimmed = path.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !trimmed.isEmpty else {
+            message = "Enter a folder path."
+            return
+        }
+
+        let expanded = NSString(string: trimmed).expandingTildeInPath
+        var isDirectory: ObjCBool = false
+
+        if FileManager.default.fileExists(atPath: expanded, isDirectory: &isDirectory) {
+            guard isDirectory.boolValue else {
+                message = "This path points to a file, not a folder."
+                return
+            }
+        } else {
+            do {
+                try FileManager.default.createDirectory(
+                    at: URL(fileURLWithPath: expanded, isDirectory: true),
+                    withIntermediateDirectories: true
+                )
+            } catch {
+                message = "Could not create folder: \(error.localizedDescription)"
+                return
+            }
+        }
+
+        guard FileManager.default.isWritableFile(atPath: expanded) else {
+            message = "Firelink cannot write to this folder."
+            return
+        }
+
+        settings.setDirectory(expanded, for: category)
+        path = expanded
+        message = "Saved."
+    }
+
+    private func statusMessage(for path: String) -> String {
+        let trimmed = path.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !trimmed.isEmpty else { return "Enter a folder path." }
+
+        let expanded = NSString(string: trimmed).expandingTildeInPath
+        var isDirectory: ObjCBool = false
+
+        if FileManager.default.fileExists(atPath: expanded, isDirectory: &isDirectory) {
+            if !isDirectory.boolValue {
+                return "This path points to a file, not a folder."
+            }
+            return FileManager.default.isWritableFile(atPath: expanded)
+                ? "Ready."
+                : "Firelink cannot write to this folder."
+        }
+
+        return "Folder will be created when applied."
+    }
+}

Sources/Firelink/Settings/LookAndFeelSettingsPane.swift

@@ -0,0 +1,47 @@
+import SwiftUI
+
+struct LookAndFeelSettingsPane: View {
+    @EnvironmentObject private var settings: AppSettings
+    @AppStorage("showMenuBarIcon") private var showMenuBarIcon = true
+
+    var body: some View {
+        Form {
+            Section("App Theme") {
+                Picker("Theme", selection: $settings.appTheme) {
+                    ForEach(AppTheme.allCases) { theme in
+                        Text(theme.rawValue)
+                            .tag(theme)
+                    }
+                }
+                .pickerStyle(.radioGroup)
+                
+                Text("Select a color palette for the app's user interface.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+            
+            Section("Display") {
+                Picker("Font Size", selection: $settings.appFontSize) {
+                    ForEach(AppFontSize.allCases) { size in
+                        Text(size.rawValue).tag(size)
+                    }
+                }
+                
+                Picker("List Row Density", selection: $settings.listRowDensity) {
+                    ForEach(ListRowDensity.allCases) { density in
+                        Text(density.rawValue).tag(density)
+                    }
+                }
+            }
+            
+            Section("Menu Bar") {
+                Toggle("Show menu bar icon", isOn: $showMenuBarIcon)
+                
+                Text("Provides quick access to downloads and queues from the macOS menu bar.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+        }
+        .formStyle(.grouped)
+    }
+}

Sources/Firelink/Settings/NetworkSettingsPane.swift

@@ -0,0 +1,73 @@
+import SwiftUI
+
+struct NetworkSettingsPane: View {
+    @EnvironmentObject private var settings: AppSettings
+
+    var body: some View {
+        Form {
+            Section {
+                Picker("Proxy", selection: proxyBinding(\.mode)) {
+                    ForEach(ProxyMode.allCases, id: \.self) { mode in
+                        Text(mode.title)
+                            .tag(mode)
+                    }
+                }
+                .pickerStyle(.radioGroup)
+
+                if settings.proxySettings.mode == .custom {
+                    Grid(alignment: .leading, horizontalSpacing: 10, verticalSpacing: 10) {
+                        GridRow {
+                            Text("IP or Host")
+                            TextField("127.0.0.1", text: proxyBinding(\.host))
+                                .textFieldStyle(.roundedBorder)
+                                .font(.system(.body, design: .monospaced))
+                        }
+
+                        GridRow {
+                            Text("Port")
+                            TextField("8080", value: proxyBinding(\.port), format: .number)
+                                .textFieldStyle(.roundedBorder)
+                                .frame(width: 110)
+                        }
+                    }
+                }
+
+                Text(networkSummary)
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+
+                if settings.proxySettings.mode == .custom {
+                    Text("aria2 uses an HTTP-style proxy for all protocols. SOCKS proxies are not supported by aria2.")
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                }
+            }
+        }
+        .formStyle(.grouped)
+    }
+
+    private var networkSummary: String {
+        switch settings.proxySettings.mode {
+        case .none:
+            "Downloads ignore configured proxies."
+        case .system:
+            "Downloads use the matching macOS system proxy when one is configured."
+        case .custom:
+            if let proxyURI = settings.proxySettings.customProxyURI {
+                "Downloads use \(proxyURI)."
+            } else {
+                "Enter a proxy host and port to enable the custom proxy."
+            }
+        }
+    }
+
+    private func proxyBinding<Value>(_ keyPath: WritableKeyPath<ProxySettings, Value>) -> Binding<Value> {
+        Binding {
+            settings.proxySettings[keyPath: keyPath]
+        } set: { newValue in
+            var proxySettings = settings.proxySettings
+            proxySettings[keyPath: keyPath] = newValue
+            settings.proxySettings = proxySettings
+        }
+    }
+}

Sources/Firelink/Settings/PowerSettingsPane.swift

@@ -0,0 +1,17 @@
+import SwiftUI
+
+struct PowerSettingsPane: View {
+    @EnvironmentObject private var settings: AppSettings
+
+    var body: some View {
+        Form {
+            Section {
+                Toggle("Prevent system sleep while downloads are active", isOn: $settings.preventsSleepWhileDownloading)
+                Text("The display may still turn off. Firelink only keeps macOS awake enough to finish active downloads.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+        }
+        .formStyle(.grouped)
+    }
+}

Sources/Firelink/Settings/SettingsContainer.swift

@@ -0,0 +1,76 @@
+import AppKit
+import SwiftUI
+
+struct SettingsPaneContainer: View {
+    @AppStorage("lastSettingsTab") private var activeTab: SettingsSidebarFilter = .downloads
+
+    var body: some View {
+        VStack(spacing: 0) {
+            HStack(spacing: 4) {
+                ForEach(SettingsSidebarFilter.allCases, id: \.self) { filter in
+                    Button {
+                        activeTab = filter
+                    } label: {
+                        VStack(spacing: 4) {
+                            Image(systemName: filter.symbolName)
+                                .font(.system(size: 16))
+                            Text(filter.rawValue)
+                                .font(.system(size: 11, weight: .medium))
+                                .lineLimit(1)
+                                .minimumScaleFactor(0.8)
+                        }
+                        .frame(maxWidth: .infinity)
+                        .padding(.vertical, 8)
+                        .contentShape(Rectangle())
+                    }
+                    .buttonStyle(.plain)
+                    .background(activeTab == filter ? Color.accentColor : Color.clear)
+                    .foregroundStyle(activeTab == filter ? Color.white : Color.primary)
+                    .clipShape(RoundedRectangle(cornerRadius: 8))
+                }
+            }
+            .padding(.horizontal, 32)
+            .padding(.vertical, 16)
+            
+            Divider()
+
+            ScrollView {
+                VStack(alignment: .leading, spacing: 0) {
+                    Text(activeTab.rawValue)
+                        .font(.largeTitle.weight(.semibold))
+                        .padding(.bottom, 24)
+
+                    selectedPane
+                        .frame(maxWidth: 720, alignment: .leading)
+                }
+                .padding(32)
+                .frame(maxWidth: .infinity, alignment: .leading)
+            }
+        }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+    }
+
+    @ViewBuilder
+    private var selectedPane: some View {
+        switch activeTab {
+        case .downloads:
+            DownloadSettingsPane()
+        case .lookAndFeel:
+            LookAndFeelSettingsPane()
+        case .network:
+            NetworkSettingsPane()
+        case .locations:
+            LocationsSettingsPane()
+        case .siteLogins:
+            SiteLoginsSettingsPane()
+        case .power:
+            PowerSettingsPane()
+        case .engine:
+            EngineSettingsPane()
+        case .integration:
+            IntegrationSettingsPane()
+        case .about:
+            AboutSettingsPane()
+        }
+    }
+}

Sources/Firelink/Settings/SiteLoginsSettingsPane.swift

@@ -0,0 +1,92 @@
+import SwiftUI
+
+struct SiteLoginsSettingsPane: View {
+    @EnvironmentObject private var settings: AppSettings
+    @State private var urlPattern = ""
+    @State private var username = ""
+    @State private var password = ""
+    @State private var editingLoginID: UUID?
+
+    var body: some View {
+        Form {
+            Section(editingLoginID == nil ? "Add Login" : "Edit Login") {
+                TextField("URL Pattern (e.g., *.github.com)", text: $urlPattern)
+                TextField("Username", text: $username)
+                SecureField(editingLoginID == nil ? "Password" : "Password (leave blank to keep current)", text: $password)
+
+                HStack {
+                    Text(settings.message)
+                        .font(.caption)
+                        .foregroundStyle(.secondary)
+                        .lineLimit(1)
+                    Spacer()
+                    if editingLoginID != nil {
+                        Button("Cancel Edit") {
+                            resetForm()
+                        }
+                    }
+                    Button {
+                        settings.saveSiteLogin(
+                            id: editingLoginID,
+                            urlPattern: urlPattern,
+                            username: username,
+                            password: password
+                        )
+                        if settings.message.hasPrefix("Added") || settings.message.hasPrefix("Updated") {
+                            resetForm()
+                        }
+                    } label: {
+                        Label(editingLoginID == nil ? "Add Login" : "Save Login", systemImage: editingLoginID == nil ? "plus" : "checkmark")
+                    }
+                    .buttonStyle(.borderedProminent)
+                }
+            }
+
+            Section("Saved Logins") {
+                if settings.siteLogins.isEmpty {
+                    Text("No saved logins.")
+                        .foregroundStyle(.secondary)
+                } else {
+                    List {
+                        ForEach(settings.siteLogins) { login in
+                            HStack {
+                                Image(systemName: "key.horizontal")
+                                    .foregroundStyle(.secondary)
+                                    .accessibilityHidden(true)
+                                Text(login.urlPattern)
+                                    .font(.system(.body, design: .monospaced))
+                                Spacer()
+                                Text(login.username)
+                                    .foregroundStyle(.secondary)
+                                Button {
+                                    edit(login)
+                                } label: {
+                                    Label("Edit", systemImage: "pencil")
+                                }
+                                .labelStyle(.iconOnly)
+                                .buttonStyle(.borderless)
+                            }
+                        }
+                        .onDelete(perform: settings.deleteSiteLogins)
+                    }
+                    .frame(minHeight: 180)
+                }
+            }
+        }
+        .formStyle(.grouped)
+    }
+
+    private func edit(_ login: SiteLogin) {
+        editingLoginID = login.id
+        urlPattern = login.urlPattern
+        username = login.username
+        password = ""
+    }
+
+    private func resetForm() {
+        editingLoginID = nil
+        urlPattern = ""
+        username = ""
+        password = ""
+    }
+}

Sources/Firelink/SettingsView.swift

@@ -1,750 +0,0 @@
-import AppKit
-import SwiftUI
-
-struct SettingsPaneContainer: View {
-    @AppStorage("lastSettingsTab") private var activeTab: SettingsSidebarFilter = .downloads
-
-    var body: some View {
-        VStack(spacing: 0) {
-            HStack(spacing: 4) {
-                ForEach(SettingsSidebarFilter.allCases, id: \.self) { filter in
-                    Button {
-                        activeTab = filter
-                    } label: {
-                        VStack(spacing: 4) {
-                            Image(systemName: filter.symbolName)
-                                .font(.system(size: 16))
-                            Text(filter.rawValue)
-                                .font(.system(size: 11, weight: .medium))
-                                .lineLimit(1)
-                                .minimumScaleFactor(0.8)
-                        }
-                        .frame(maxWidth: .infinity)
-                        .padding(.vertical, 8)
-                        .contentShape(Rectangle())
-                    }
-                    .buttonStyle(.plain)
-                    .background(activeTab == filter ? Color.accentColor : Color.clear)
-                    .foregroundStyle(activeTab == filter ? Color.white : Color.primary)
-                    .clipShape(RoundedRectangle(cornerRadius: 8))
-                }
-            }
-            .padding(.horizontal, 32)
-            .padding(.vertical, 16)
-            
-            Divider()
-
-            ScrollView {
-                VStack(alignment: .leading, spacing: 0) {
-                    Text(activeTab.rawValue)
-                        .font(.largeTitle.weight(.semibold))
-                        .padding(.bottom, 24)
-
-                    selectedPane
-                        .frame(maxWidth: 720, alignment: .leading)
-                }
-                .padding(32)
-                .frame(maxWidth: .infinity, alignment: .leading)
-            }
-        }
-        .frame(maxWidth: .infinity, maxHeight: .infinity)
-    }
-
-    @ViewBuilder
-    private var selectedPane: some View {
-        switch activeTab {
-        case .downloads:
-            DownloadSettingsPane()
-        case .lookAndFeel:
-            LookAndFeelSettingsPane()
-        case .network:
-            NetworkSettingsPane()
-        case .locations:
-            LocationsSettingsPane()
-        case .siteLogins:
-            SiteLoginsSettingsPane()
-        case .power:
-            PowerSettingsPane()
-        case .engine:
-            EngineSettingsPane()
-        case .integration:
-            IntegrationSettingsPane()
-        case .about:
-            AboutSettingsPane()
-        }
-    }
-}
-
-private struct LookAndFeelSettingsPane: View {
-    @EnvironmentObject private var settings: AppSettings
-    @AppStorage("showMenuBarIcon") private var showMenuBarIcon = true
-
-    var body: some View {
-        Form {
-            Section("App Theme") {
-                Picker("Theme", selection: $settings.appTheme) {
-                    ForEach(AppTheme.allCases) { theme in
-                        Text(theme.rawValue)
-                            .tag(theme)
-                    }
-                }
-                .pickerStyle(.radioGroup)
-                
-                Text("Select a color palette for the app's user interface.")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-            }
-            
-            Section("Display") {
-                Picker("Font Size", selection: $settings.appFontSize) {
-                    ForEach(AppFontSize.allCases) { size in
-                        Text(size.rawValue).tag(size)
-                    }
-                }
-                
-                Picker("List Row Density", selection: $settings.listRowDensity) {
-                    ForEach(ListRowDensity.allCases) { density in
-                        Text(density.rawValue).tag(density)
-                    }
-                }
-            }
-            
-            Section("Menu Bar") {
-                Toggle("Show menu bar icon", isOn: $showMenuBarIcon)
-                
-                Text("Provides quick access to downloads and queues from the macOS menu bar. Restart required if hiding.")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-            }
-        }
-        .formStyle(.grouped)
-    }
-}
-
-private struct AboutSettingsPane: View {
-    @StateObject private var updateChecker = AppUpdateChecker()
-    @State private var availableUpdate: AvailableUpdate?
-
-    private let developerProfileURL = URL(string: "https://github.com/nimbold")!
-    private let projectURL = URL(string: "https://github.com/nimbold/Firelink")!
-    private let aria2URL = URL(string: "https://aria2.github.io/")!
-    private let licenseURL = URL(string: "https://github.com/nimbold/Firelink/blob/main/LICENSE")!
-
-    private var appVersion: String {
-        Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "0.1.0"
-    }
-
-    private var buildNumber: String {
-        Bundle.main.infoDictionary?["CFBundleVersion"] as? String ?? "Development"
-    }
-
-    var body: some View {
-        Form {
-            Section {
-                HStack(alignment: .center, spacing: 14) {
-                    Image(nsImage: NSApp.applicationIconImage)
-                        .resizable()
-                        .frame(width: 56, height: 56)
-                        .accessibilityHidden(true)
-
-                    VStack(alignment: .leading, spacing: 4) {
-                        Text("Firelink")
-                            .font(.title2.weight(.semibold))
-                        Text("Version \(appVersion)")
-                            .foregroundStyle(.secondary)
-                        Text("A native macOS download manager for fast, organized, segmented transfers.")
-                            .font(.caption)
-                            .foregroundStyle(.secondary)
-                    }
-                }
-                .padding(.vertical, 4)
-            }
-
-            Section("Updates") {
-                LabeledContent("Status") {
-                    Label(updateChecker.status.message, systemImage: updateStatusSymbol)
-                        .foregroundStyle(updateStatusColor)
-                }
-
-                if let lastChecked = updateChecker.lastChecked {
-                    LabeledContent("Last checked") {
-                        Text(lastChecked, format: .dateTime.month().day().hour().minute())
-                            .foregroundStyle(.secondary)
-                    }
-                }
-
-                HStack {
-                    Button {
-                        Task {
-                            await updateChecker.checkForUpdates(currentVersion: appVersion)
-                        }
-                    } label: {
-                        Label("Check for Updates", systemImage: "arrow.clockwise")
-                    }
-                    .disabled(updateChecker.status == .checking)
-
-                    Button {
-                        openReleasesPage()
-                    } label: {
-                        Label("Open Releases", systemImage: "arrow.up.right.square")
-                    }
-
-                    Spacer()
-                }
-
-                if case .updateAvailable(_, let releaseURL) = updateChecker.status {
-                    Button {
-                        NSWorkspace.shared.open(releaseURL)
-                    } label: {
-                        Label("Download Latest Version", systemImage: "square.and.arrow.down")
-                    }
-                    .buttonStyle(.borderedProminent)
-                }
-            }
-
-            Section("Developer") {
-                LabeledContent("Created by") {
-                    Text("NimBold")
-                }
-
-                LabeledContent("Source") {
-                    Link("nimbold/Firelink", destination: projectURL)
-                }
-            }
-
-            Section("Credits") {
-                LabeledContent("Download engine") {
-                    Link("aria2", destination: aria2URL)
-                }
-
-                Text("Firelink uses aria2c for segmented HTTP, HTTPS, FTP, and SFTP downloads.")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-            }
-
-            Section("Legal") {
-                LabeledContent("License") {
-                    Link("MIT License", destination: licenseURL)
-                }
-
-                Text("Copyright © 2026 NimBold. Firelink is released under the MIT License.")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-            }
-        }
-        .formStyle(.grouped)
-        .onChange(of: updateChecker.status) { _, status in
-            if case .updateAvailable(let latestVersion, let releaseURL) = status {
-                availableUpdate = AvailableUpdate(version: latestVersion, url: releaseURL)
-            }
-        }
-        .alert("Update Available", isPresented: Binding(
-            get: { availableUpdate != nil },
-            set: { isPresented in
-                if !isPresented {
-                    availableUpdate = nil
-                }
-            }
-        )) {
-            Button("Not Now", role: .cancel) {
-                availableUpdate = nil
-            }
-            Button("Yes") {
-                if let releaseURL = availableUpdate?.url {
-                    NSWorkspace.shared.open(releaseURL)
-                }
-                availableUpdate = nil
-            }
-        } message: {
-            Text("Firelink version \(availableUpdate?.version ?? "") is available. Do you want to open the download page?")
-        }
-    }
-
-    private var updateStatusSymbol: String {
-        switch updateChecker.status {
-        case .idle:
-            "sparkle.magnifyingglass"
-        case .checking:
-            "arrow.clockwise"
-        case .upToDate:
-            "checkmark.seal.fill"
-        case .updateAvailable:
-            "arrow.down.circle.fill"
-        case .unavailable:
-            "exclamationmark.triangle.fill"
-        }
-    }
-
-    private var updateStatusColor: Color {
-        switch updateChecker.status {
-        case .idle, .checking:
-            .secondary
-        case .upToDate:
-            .green
-        case .updateAvailable:
-            .accentColor
-        case .unavailable:
-            .orange
-        }
-    }
-
-    private func openReleasesPage() {
-        NSWorkspace.shared.open(updateChecker.releasesURL)
-    }
-
-    private struct AvailableUpdate: Equatable {
-        var version: String
-        var url: URL
-    }
-}
-
-private struct EngineSettingsPane: View {
-    @State private var version = "Checking..."
-
-    private var executableURL: URL? {
-        Aria2DownloadEngine.findExecutable()
-    }
-
-    var body: some View {
-        Form {
-            Section {
-                LabeledContent("Status") {
-                    Label(
-                        executableURL == nil ? "Missing" : "Ready",
-                        systemImage: executableURL == nil ? "exclamationmark.triangle.fill" : "checkmark.seal.fill"
-                    )
-                    .foregroundStyle(executableURL == nil ? .orange : .green)
-                }
-
-                LabeledContent("Binary") {
-                    Text(executableURL?.path ?? "Not found")
-                        .font(.system(.body, design: .monospaced))
-                        .textSelection(.enabled)
-                }
-
-                LabeledContent("Version") {
-                    Text(version)
-                        .font(.system(.body, design: .monospaced))
-                        .textSelection(.enabled)
-                }
-
-                if executableURL == nil {
-                    Text("Install aria2 with Homebrew or bundle aria2c inside the app resources.")
-                        .font(.caption)
-                        .foregroundStyle(.secondary)
-                }
-            }
-        }
-        .formStyle(.grouped)
-        .task {
-            version = await Aria2DownloadEngine.versionString() ?? "Unavailable"
-        }
-    }
-}
-
-private struct NetworkSettingsPane: View {
-    @EnvironmentObject private var settings: AppSettings
-
-    var body: some View {
-        Form {
-            Section {
-                Picker("Proxy", selection: proxyBinding(\.mode)) {
-                    ForEach(ProxyMode.allCases, id: \.self) { mode in
-                        Text(mode.title)
-                            .tag(mode)
-                    }
-                }
-                .pickerStyle(.radioGroup)
-
-                if settings.proxySettings.mode == .custom {
-                    Picker("Proxy type", selection: proxyBinding(\.type)) {
-                        ForEach(ProxyType.allCases, id: \.self) { type in
-                            Text(type.title)
-                                .tag(type)
-                        }
-                    }
-
-                    Grid(alignment: .leading, horizontalSpacing: 10, verticalSpacing: 10) {
-                        GridRow {
-                            Text("IP or Host")
-                            TextField("127.0.0.1", text: proxyBinding(\.host))
-                                .textFieldStyle(.roundedBorder)
-                                .font(.system(.body, design: .monospaced))
-                        }
-
-                        GridRow {
-                            Text("Port")
-                            TextField("8080", value: proxyBinding(\.port), format: .number)
-                                .textFieldStyle(.roundedBorder)
-                                .frame(width: 110)
-                        }
-                    }
-                }
-
-                Text(networkSummary)
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-            }
-        }
-        .formStyle(.grouped)
-    }
-
-    private var networkSummary: String {
-        switch settings.proxySettings.mode {
-        case .none:
-            "Downloads ignore configured proxies."
-        case .system:
-            "Downloads use the matching macOS system proxy when one is configured."
-        case .custom:
-            if let proxyURI = settings.proxySettings.customProxyURI {
-                "Downloads use \(proxyURI)."
-            } else {
-                "Enter a proxy host and port to enable the custom proxy."
-            }
-        }
-    }
-
-    private func proxyBinding<Value>(_ keyPath: WritableKeyPath<ProxySettings, Value>) -> Binding<Value> {
-        Binding {
-            settings.proxySettings[keyPath: keyPath]
-        } set: { newValue in
-            var proxySettings = settings.proxySettings
-            proxySettings[keyPath: keyPath] = newValue
-            settings.proxySettings = proxySettings
-        }
-    }
-}
-
-private struct DownloadSettingsPane: View {
-    @EnvironmentObject private var settings: AppSettings
-
-    var body: some View {
-        Form {
-            Section {
-                Stepper(
-                    "Default connections per server: \(settings.perServerConnections)",
-                    value: $settings.perServerConnections,
-                    in: 1...16
-                )
-                Text("Used as the default for new downloads. The Add Downloads window can override it per batch.")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-
-                Stepper(
-                    "Parallel downloads: \(settings.maxConcurrentDownloads)",
-                    value: $settings.maxConcurrentDownloads,
-                    in: 1...12
-                )
-                Text("Controls how many files Firelink downloads at the same time.")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-            }
-
-        }
-        .formStyle(.grouped)
-    }
-}
-
-private struct LocationsSettingsPane: View {
-    @EnvironmentObject private var settings: AppSettings
-
-    var body: some View {
-        Form {
-            Section {
-                ForEach(DownloadCategory.allCases, id: \.self) { category in
-                    DirectoryPickerRow(category: category)
-                }
-
-                HStack {
-                    Spacer()
-                    Button("Reset Defaults") {
-                        settings.resetDirectories()
-                    }
-                }
-            }
-        }
-        .formStyle(.grouped)
-    }
-}
-
-private struct DirectoryPickerRow: View {
-    @EnvironmentObject private var settings: AppSettings
-    let category: DownloadCategory
-
-    @State private var path = ""
-
-    var body: some View {
-        LabeledContent {
-            HStack(spacing: 8) {
-                TextField("Folder path", text: Binding(
-                    get: { settings.downloadDirectories[category] ?? path },
-                    set: { newValue in
-                        path = newValue
-                        settings.setDirectory(newValue, for: category)
-                    }
-                ))
-                .textFieldStyle(.roundedBorder)
-                .font(.system(.body, design: .monospaced))
-
-                Button {
-                    selectFolder()
-                } label: {
-                    Label("Select", systemImage: "folder.badge.plus")
-                }
-            }
-        } label: {
-            Label(category.rawValue, systemImage: category.symbolName)
-        }
-    }
-
-    private func selectFolder() {
-        let panel = NSOpenPanel()
-        panel.canChooseFiles = false
-        panel.canChooseDirectories = true
-        panel.allowsMultipleSelection = false
-        panel.canCreateDirectories = true
-        panel.directoryURL = settings.destinationDirectory(for: category)
-
-        if panel.runModal() == .OK, let url = panel.url {
-            settings.setDirectory(url.path, for: category)
-        }
-    }
-}
-
-private struct SiteLoginsSettingsPane: View {
-    @EnvironmentObject private var settings: AppSettings
-    @State private var urlPattern = ""
-    @State private var username = ""
-    @State private var password = ""
-
-    var body: some View {
-        Form {
-            Section("Add Login") {
-                TextField("URL Pattern (e.g., *.github.com)", text: $urlPattern)
-                TextField("Username", text: $username)
-                SecureField("Password", text: $password)
-
-                HStack {
-                    Text(settings.message)
-                        .font(.caption)
-                        .foregroundStyle(.secondary)
-                        .lineLimit(1)
-                    Spacer()
-                    Button {
-                        settings.addSiteLogin(urlPattern: urlPattern, username: username, password: password)
-                        if settings.message.hasPrefix("Added") {
-                            urlPattern = ""
-                            username = ""
-                            password = ""
-                        }
-                    } label: {
-                        Label("Add Login", systemImage: "plus")
-                    }
-                    .buttonStyle(.borderedProminent)
-                }
-            }
-
-            Section("Saved Logins") {
-                if settings.siteLogins.isEmpty {
-                    Text("No saved logins.")
-                        .foregroundStyle(.secondary)
-                } else {
-                    List {
-                        ForEach(settings.siteLogins) { login in
-                            HStack {
-                                Image(systemName: "key.horizontal")
-                                    .foregroundStyle(.secondary)
-                                Text(login.urlPattern)
-                                    .font(.system(.body, design: .monospaced))
-                                Spacer()
-                                Text(login.username)
-                                    .foregroundStyle(.secondary)
-                            }
-                        }
-                        .onDelete(perform: settings.deleteSiteLogins)
-                    }
-                    .frame(minHeight: 180)
-                }
-            }
-        }
-        .formStyle(.grouped)
-    }
-}
-
-private struct PowerSettingsPane: View {
-    @EnvironmentObject private var settings: AppSettings
-
-    var body: some View {
-        Form {
-            Section {
-                Toggle("Prevent system sleep while downloads are active", isOn: $settings.preventsSleepWhileDownloading)
-                Text("The display may still turn off. Firelink only keeps macOS awake enough to finish active downloads.")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-            }
-        }
-        .formStyle(.grouped)
-    }
-}
-
-private struct IntegrationSettingsPane: View {
-    @State private var copiedExtensionURL: URL?
-    @State private var installMessage = ""
-
-    var body: some View {
-        Form {
-            Section {
-                HStack(alignment: .center, spacing: 14) {
-                    Image(systemName: "puzzlepiece.extension")
-                        .resizable()
-                        .frame(width: 48, height: 48)
-                        .foregroundStyle(.orange)
-                        .accessibilityHidden(true)
-
-                    VStack(alignment: .leading, spacing: 4) {
-                        Text("Firefox Extension")
-                            .font(.title2.weight(.semibold))
-                        Text("Capture downloads directly from your browser.")
-                            .foregroundStyle(.secondary)
-                    }
-                }
-                .padding(.vertical, 4)
-            }
-            
-            Section("Installation") {
-                HStack(spacing: 10) {
-                    Button {
-                        copyExtensionToDownloads()
-                    } label: {
-                        Label("Copy to Downloads", systemImage: "folder.badge.plus")
-                    }
-                    
-                    Button {
-                        showCopiedExtensionInFinder()
-                    } label: {
-                        Label("Show Copied Folder", systemImage: "folder.fill")
-                    }
-                    .disabled(copiedExtensionURL == nil)
-
-                    Button {
-                        openFirefoxDebugging()
-                    } label: {
-                        Label("Open Firefox Debugging", systemImage: "link")
-                    }
-                }
-                .buttonStyle(.borderedProminent)
-
-                if !installMessage.isEmpty {
-                    Text(installMessage)
-                        .font(.caption)
-                        .foregroundStyle(.secondary)
-                }
-                
-                Text("Until the official Firefox Add-ons listing is approved, load the extension manually:\n1. Click 'Copy to Downloads'.\n2. Click 'Open Firefox Debugging'.\n3. Click 'This Firefox' on the left sidebar.\n4. Click 'Load Temporary Add-on' and select manifest.json inside Downloads/Firelink Firefox Extension.\n\nKeep the copied folder while Firefox is running. Temporary add-ons are removed when Firefox restarts, so you can delete the folder after restart or after installing the official add-on.")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-            }
-            
-            Section("Permissions & Privacy") {
-                Text("The Firelink extension uses download, context menu, storage, active tab, scripting, and local Firelink endpoint permissions. It reads the active tab URL for per-site settings and explicit right-click actions, and forwards download URLs only when you use a Firelink action or enable global capture.")
-                    .font(.caption)
-                    .foregroundStyle(.secondary)
-            }
-        }
-        .formStyle(.grouped)
-        .onAppear {
-            if FileManager.default.fileExists(atPath: downloadsExtensionURL.path) {
-                copiedExtensionURL = downloadsExtensionURL
-            }
-        }
-    }
-    
-    private var downloadsExtensionURL: URL {
-        let downloads = FileManager.default.urls(for: .downloadsDirectory, in: .userDomainMask).first
-            ?? URL(fileURLWithPath: NSHomeDirectory()).appendingPathComponent("Downloads")
-        return downloads.appendingPathComponent("Firelink Firefox Extension", isDirectory: true)
-    }
-
-    private func copyExtensionToDownloads() {
-        guard let sourceURL = bundledFirefoxExtensionURL() else {
-            installMessage = "The bundled Firefox extension folder was not found."
-            return
-        }
-
-        let destinationURL = downloadsExtensionURL
-        do {
-            if FileManager.default.fileExists(atPath: destinationURL.path) {
-                try FileManager.default.removeItem(at: destinationURL)
-            }
-
-            try copyFirefoxExtension(from: sourceURL, to: destinationURL)
-            copiedExtensionURL = destinationURL
-            installMessage = "Copied to \(destinationURL.path). Select manifest.json from this folder in Firefox."
-            showCopiedExtensionInFinder()
-        } catch {
-            installMessage = "Could not copy the extension to Downloads: \(error.localizedDescription)"
-        }
-    }
-
-    private func bundledFirefoxExtensionURL() -> URL? {
-        if let bundled = Bundle.main.url(forResource: "FirefoxExtension", withExtension: nil) {
-            return bundled
-        }
-
-        let sourceFile = URL(fileURLWithPath: #filePath)
-        let projectRoot = sourceFile
-            .deletingLastPathComponent()
-            .deletingLastPathComponent()
-            .deletingLastPathComponent()
-        let sourceTreeExtension = projectRoot.appendingPathComponent("Extensions/Firefox", isDirectory: true)
-        return FileManager.default.fileExists(atPath: sourceTreeExtension.appendingPathComponent("manifest.json").path)
-            ? sourceTreeExtension
-            : nil
-    }
-
-    private func copyFirefoxExtension(from sourceURL: URL, to destinationURL: URL) throws {
-        let fileManager = FileManager.default
-        try fileManager.createDirectory(at: destinationURL, withIntermediateDirectories: true)
-
-        for component in ["background.js", "content.js", "manifest.json", "icons", "popup"] {
-            try fileManager.copyItem(
-                at: sourceURL.appendingPathComponent(component),
-                to: destinationURL.appendingPathComponent(component)
-            )
-        }
-    }
-
-    private func showCopiedExtensionInFinder() {
-        let folderURL = copiedExtensionURL ?? downloadsExtensionURL
-        let manifestURL = folderURL.appendingPathComponent("manifest.json")
-        if FileManager.default.fileExists(atPath: manifestURL.path) {
-            NSWorkspace.shared.activateFileViewerSelecting([manifestURL])
-        } else if FileManager.default.fileExists(atPath: folderURL.path) {
-            NSWorkspace.shared.activateFileViewerSelecting([folderURL])
-        }
-    }
-
-    private func openFirefoxDebugging() {
-        let bundleIDs = [
-            "org.mozilla.firefoxdeveloperedition",
-            "org.mozilla.firefox",
-            "org.mozilla.nightly"
-        ]
-        
-        let workspace = NSWorkspace.shared
-        for id in bundleIDs {
-            if let appURL = workspace.urlForApplication(withBundleIdentifier: id) {
-                let process = Process()
-                process.executableURL = URL(fileURLWithPath: "/usr/bin/open")
-                process.arguments = ["-a", appURL.path, "about:debugging"]
-                try? process.run()
-                return
-            }
-        }
-        
-        // Fallback
-        if let fallbackURL = URL(string: "about:debugging") {
-            workspace.open(fallbackURL)
-        }
-    }
-}

Sources/Firelink/Theme.swift

@@ -53,6 +53,14 @@ enum ListRowDensity: String, Codable, CaseIterable, Identifiable, Sendable {
         case .relaxed: return 14
         }
     }
+
+    var minRowHeight: CGFloat {
+        switch self {
+        case .compact: return 24
+        case .standard: return 32
+        case .relaxed: return 44
+        }
+    }
 }
 
 enum AppTheme: String, Codable, CaseIterable, Identifiable, Sendable {