add setting to control tab insertion position

app/lib/features/geckoview/domain/providers/tab_session.g.dart

@@ -57,7 +57,7 @@ final class TabSessionProvider extends $NotifierProvider<TabSession, void> {
   }
 }
 
-String _$tabSessionHash() => r'be44598ad023c2fb23e48d3fa4bf805c4640c599';
+String _$tabSessionHash() => r'636f0940425d689ff98fabfc61687de828a8eeb9';
 
 final class TabSessionFamily extends $Family
     with $ClassFamilyOverride<TabSession, void, void, void, String?> {

app/lib/features/geckoview/domain/repositories/tab.dart

@@ -42,6 +42,8 @@ import 'package:weblibre/features/geckoview/features/tabs/domain/providers/selec
 import 'package:weblibre/features/geckoview/features/tabs/domain/repositories/container.dart';
 import 'package:weblibre/features/geckoview/features/tabs/domain/repositories/tab.dart';
 import 'package:weblibre/features/tor/domain/repositories/tor_proxy.dart';
+import 'package:weblibre/features/user/data/models/general_settings.dart';
+import 'package:weblibre/features/user/domain/repositories/general_settings.dart';
 import 'package:weblibre/utils/debouncer.dart';
 
 part 'tab.g.dart';
@@ -66,6 +68,14 @@ class TabRepository extends _$TabRepository {
     _tabFromIntent.remove(tabId);
   }
 
+  NewTabPosition _newTabPositionForParent(String? parentId) {
+    if (parentId != null) {
+      return NewTabPosition.first;
+    }
+
+    return ref.read(generalSettingsWithDefaultsProvider).newTabPosition;
+  }
+
   Future<String?> _resolveParentIdForContext({
     required String? parentId,
     required String? targetContextId,
@@ -122,6 +132,7 @@ class TabRepository extends _$TabRepository {
     final effectiveContextId = tabMode is IsolatedTabMode
         ? effectiveIsolationContextId
         : assignedContainer?.metadata.contextualIdentity;
+    final newTabPosition = _newTabPositionForParent(validatedParentId);
 
     final newTabId = await tabDao.upsertTabTransactional(
       () {
@@ -139,6 +150,7 @@ class TabRepository extends _$TabRepository {
         );
       },
       parentId: Value(validatedParentId),
+      newTabPosition: newTabPosition,
       containerId: Value(assignedContainer?.id),
       url: Value(url),
       tabMode: Value(tabMode),
@@ -171,7 +183,6 @@ class TabRepository extends _$TabRepository {
         tabs: tabs,
         selectTabId: selectTabId,
       );
-
       // Build sets for validation
       final creatingTabIds = createdTabIds.toSet();
       final parentIdsToValidate = tabs
@@ -204,6 +215,7 @@ class TabRepository extends _$TabRepository {
           tabId,
           parentId: Value(validatedParentId),
           source: TabSource.manual,
+          newTabPosition: _newTabPositionForParent(validatedParentId),
           containerId: Value(assignedContainer?.id),
           url: Value(Uri.tryParse(tab.url)),
           tabMode: Value(
@@ -254,6 +266,7 @@ class TabRepository extends _$TabRepository {
         );
       },
       parentId: const Value.absent(),
+      newTabPosition: _newTabPositionForParent(null),
       containerId: Value(containerData?.id),
       tabMode: Value(duplicateTabMode),
     );
@@ -597,6 +610,7 @@ class TabRepository extends _$TabRepository {
           tabId,
           parentId: const Value.absent(),
           source: TabSource.addedEvent,
+          newTabPosition: _newTabPositionForParent(null),
           containerId: Value(containerId),
         );
       },

app/lib/features/geckoview/domain/repositories/tab.g.dart

@@ -41,7 +41,7 @@ final class TabRepositoryProvider
   }
 }
 
-String _$tabRepositoryHash() => r'1c866a1f5b1872ba07ebac82ff92455a7af316a3';
+String _$tabRepositoryHash() => r'4dd31901b4d02ca075d3dcec3822f5a2832d164c';
 
 abstract class _$TabRepository extends $Notifier<void> {
   void build();

app/lib/features/geckoview/features/browser/domain/providers.g.dart

@@ -601,7 +601,7 @@ final class QuickTabSwitcherTabStatesProvider
 }
 
 String _$quickTabSwitcherTabStatesHash() =>
-    r'2627bcd25718472f0c8057e836d76bdaa7317c1c';
+    r'd83ea34d366238681baaad0b36699ee0742edc3d';
 
 final class QuickTabSwitcherTabStatesFamily extends $Family
     with

app/lib/features/geckoview/features/tabs/data/database/daos/tab.dart

@@ -30,6 +30,7 @@ import 'package:weblibre/features/geckoview/features/tabs/data/entities/tab_mode
 import 'package:weblibre/features/geckoview/features/tabs/data/entities/tab_source.dart';
 import 'package:weblibre/features/geckoview/features/tabs/data/models/container_data.dart';
 import 'package:weblibre/features/geckoview/features/tabs/data/models/tab_query_result.dart';
+import 'package:weblibre/features/user/data/models/general_settings.dart';
 
 class SyncTabsResult {
   final Set<String> deletedIsolationContextIds;
@@ -139,6 +140,7 @@ class TabDao extends DatabaseAccessor<TabDatabase> with $TabDaoMixin {
   Future<String> _generateOrderKey({
     required Value<String?> parentId,
     required Value<String?> containerId,
+    required NewTabPosition newTabPosition,
   }) async {
     if (parentId.value.isNotEmpty) {
       return await db.containerDao
@@ -148,15 +150,23 @@ class TabDao extends DatabaseAccessor<TabDatabase> with $TabDaoMixin {
               .generateLeadingOrderKey(containerId.value)
               .getSingle();
     } else {
-      return db.containerDao
+      return switch (newTabPosition) {
-          .generateLeadingOrderKey(containerId.value)
+        NewTabPosition.first =>
-          .getSingle();
+          db.containerDao
+              .generateLeadingOrderKey(containerId.value)
+              .getSingle(),
+        NewTabPosition.end =>
+          db.containerDao
+              .generateTrailingOrderKey(containerId.value)
+              .getSingle(),
+      };
     }
   }
 
   Future<String> upsertTabTransactional(
     Future<String> Function() createTab, {
     required Value<String?> parentId,
+    NewTabPosition newTabPosition = NewTabPosition.first,
     Value<String?> containerId = const Value.absent(),
     Value<String?> orderKey = const Value.absent(),
     Value<Uri?> url = const Value.absent(),
@@ -167,7 +177,11 @@ class TabDao extends DatabaseAccessor<TabDatabase> with $TabDaoMixin {
       final tabId = await createTab();
       final currentOrderKey =
           orderKey.value ??
-          await _generateOrderKey(parentId: parentId, containerId: containerId);
+          await _generateOrderKey(
+            parentId: parentId,
+            containerId: containerId,
+            newTabPosition: newTabPosition,
+          );
       final Value<TabModeDbValue> persistedTabMode = tabMode.present
           ? Value(tabMode.value.toDbValue())
           : const Value.absent();
@@ -211,6 +225,7 @@ class TabDao extends DatabaseAccessor<TabDatabase> with $TabDaoMixin {
     String tabId, {
     required TabSource source,
     required Value<String?> parentId,
+    NewTabPosition newTabPosition = NewTabPosition.first,
     Value<String?> containerId = const Value.absent(),
     Value<String?> orderKey = const Value.absent(),
     Value<Uri?> url = const Value.absent(),
@@ -220,7 +235,11 @@ class TabDao extends DatabaseAccessor<TabDatabase> with $TabDaoMixin {
     return db.transaction(() async {
       final currentOrderKey =
           orderKey.value ??
-          await _generateOrderKey(parentId: parentId, containerId: containerId);
+          await _generateOrderKey(
+            parentId: parentId,
+            containerId: containerId,
+            newTabPosition: newTabPosition,
+          );
       final Value<TabModeDbValue> persistedTabMode = tabMode.present
           ? Value(tabMode.value.toDbValue())
           : const Value.absent();

app/lib/features/settings/presentation/screens/tabs_behavior_settings.dart

@@ -68,6 +68,7 @@ class _TabCreationSection extends StatelessWidget {
       children: [
         SettingSection(name: 'Tab Creation'),
         _NewTabDefaultSection(),
+        _NewTabPositionSection(),
         _ExternalLinkHandlingSection(),
         _AppLinksModeSection(),
       ],
@@ -255,6 +256,59 @@ class _ExternalLinkHandlingSection extends HookConsumerWidget {
   }
 }
 
+class _NewTabPositionSection extends HookConsumerWidget {
+  const _NewTabPositionSection();
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final newTabPosition = ref.watch(
+      generalSettingsWithDefaultsProvider.select((s) => s.newTabPosition),
+    );
+
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 8),
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          const ListTile(
+            title: Text('New Tab Position'),
+            subtitle: Text('Choose where newly created tabs appear by default'),
+            leading: Icon(MdiIcons.reorderHorizontal),
+            contentPadding: EdgeInsets.zero,
+          ),
+          Center(
+            child: SegmentedButton(
+              showSelectedIcon: false,
+              segments: const [
+                ButtonSegment(
+                  value: NewTabPosition.first,
+                  label: Text('First'),
+                  icon: Icon(MdiIcons.arrowCollapseLeft),
+                ),
+                ButtonSegment(
+                  value: NewTabPosition.end,
+                  label: Text('End'),
+                  icon: Icon(MdiIcons.arrowCollapseRight),
+                ),
+              ],
+              selected: {newTabPosition},
+              onSelectionChanged: (value) async {
+                await ref
+                    .read(saveGeneralSettingsControllerProvider.notifier)
+                    .save(
+                      (currentSettings) =>
+                          currentSettings.copyWith.newTabPosition(value.first),
+                    );
+              },
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
 class _CreateChildTabsTile extends HookConsumerWidget {
   const _CreateChildTabsTile();
 

app/lib/features/user/data/models/general_settings.dart

@@ -45,6 +45,8 @@ enum QuickTabSwitcherMode { lastUsedTabs, containerTabs }
 
 enum TabIntentOpenSetting { regular, private, ask }
 
+enum NewTabPosition { first, end }
+
 enum TabBarPosition { top, bottom }
 
 enum TabBarLayout { withTitle, compact }
@@ -82,6 +84,7 @@ class GeneralSettings with FastEquatable {
   final bool showIsolatedTabUi;
   @JsonKey(name: 'defaultCreateTabType')
   final TabType storedDefaultCreateTabType;
+  final NewTabPosition newTabPosition;
   final TabIntentOpenSetting tabIntentOpenSetting;
   final bool autoHideTabBar;
   final TabBarSwipeAction tabBarSwipeAction;
@@ -129,6 +132,7 @@ class GeneralSettings with FastEquatable {
     required this.showContainerUi,
     required this.showIsolatedTabUi,
     required this.storedDefaultCreateTabType,
+    required this.newTabPosition,
     required this.tabIntentOpenSetting,
     required this.autoHideTabBar,
     required this.tabBarSwipeAction,
@@ -177,6 +181,7 @@ class GeneralSettings with FastEquatable {
     bool? showContainerUi,
     bool? showIsolatedTabUi,
     TabType? storedDefaultCreateTabType,
+    NewTabPosition? newTabPosition,
     TabIntentOpenSetting? tabIntentOpenSetting,
     bool? autoHideTabBar,
     TabBarSwipeAction? tabBarSwipeAction,
@@ -223,6 +228,7 @@ class GeneralSettings with FastEquatable {
        showIsolatedTabUi = showIsolatedTabUi ?? true,
        storedDefaultCreateTabType =
            storedDefaultCreateTabType ?? TabType.regular,
+       newTabPosition = newTabPosition ?? NewTabPosition.first,
        tabIntentOpenSetting = tabIntentOpenSetting ?? TabIntentOpenSetting.ask,
        autoHideTabBar = autoHideTabBar ?? true,
        tabBarSwipeAction =
@@ -300,6 +306,7 @@ class GeneralSettings with FastEquatable {
     showContainerUi,
     showIsolatedTabUi,
     storedDefaultCreateTabType,
+    newTabPosition,
     tabIntentOpenSetting,
     autoHideTabBar,
     tabBarSwipeAction,

app/lib/features/user/data/models/general_settings.g.dart

@@ -41,6 +41,8 @@ abstract class _$GeneralSettingsCWProxy {
     TabType storedDefaultCreateTabType,
   );
 
+  GeneralSettings newTabPosition(NewTabPosition newTabPosition);
+
   GeneralSettings tabIntentOpenSetting(
     TabIntentOpenSetting tabIntentOpenSetting,
   );
@@ -137,6 +139,7 @@ abstract class _$GeneralSettingsCWProxy {
     bool showContainerUi,
     bool showIsolatedTabUi,
     TabType storedDefaultCreateTabType,
+    NewTabPosition newTabPosition,
     TabIntentOpenSetting tabIntentOpenSetting,
     bool autoHideTabBar,
     TabBarSwipeAction tabBarSwipeAction,
@@ -236,6 +239,10 @@ class _$GeneralSettingsCWProxyImpl implements _$GeneralSettingsCWProxy {
     TabType storedDefaultCreateTabType,
   ) => call(storedDefaultCreateTabType: storedDefaultCreateTabType);
 
+  @override
+  GeneralSettings newTabPosition(NewTabPosition newTabPosition) =>
+      call(newTabPosition: newTabPosition);
+
   @override
   GeneralSettings tabIntentOpenSetting(
     TabIntentOpenSetting tabIntentOpenSetting,
@@ -393,6 +400,7 @@ class _$GeneralSettingsCWProxyImpl implements _$GeneralSettingsCWProxy {
     Object? showContainerUi = const $CopyWithPlaceholder(),
     Object? showIsolatedTabUi = const $CopyWithPlaceholder(),
     Object? storedDefaultCreateTabType = const $CopyWithPlaceholder(),
+    Object? newTabPosition = const $CopyWithPlaceholder(),
     Object? tabIntentOpenSetting = const $CopyWithPlaceholder(),
     Object? autoHideTabBar = const $CopyWithPlaceholder(),
     Object? tabBarSwipeAction = const $CopyWithPlaceholder(),
@@ -506,6 +514,12 @@ class _$GeneralSettingsCWProxyImpl implements _$GeneralSettingsCWProxy {
           ? _value.storedDefaultCreateTabType
           // ignore: cast_nullable_to_non_nullable
           : storedDefaultCreateTabType as TabType,
+      newTabPosition:
+          newTabPosition == const $CopyWithPlaceholder() ||
+              newTabPosition == null
+          ? _value.newTabPosition
+          // ignore: cast_nullable_to_non_nullable
+          : newTabPosition as NewTabPosition,
       tabIntentOpenSetting:
           tabIntentOpenSetting == const $CopyWithPlaceholder() ||
               tabIntentOpenSetting == null
@@ -733,6 +747,10 @@ GeneralSettings _$GeneralSettingsFromJson(
     _$TabTypeEnumMap,
     json['defaultCreateTabType'],
   ),
+  newTabPosition: $enumDecodeNullable(
+    _$NewTabPositionEnumMap,
+    json['newTabPosition'],
+  ),
   tabIntentOpenSetting: $enumDecodeNullable(
     _$TabIntentOpenSettingEnumMap,
     json['tabIntentOpenSetting'],
@@ -818,6 +836,7 @@ Map<String, dynamic> _$GeneralSettingsToJson(
   'showIsolatedTabUi': instance.showIsolatedTabUi,
   'defaultCreateTabType':
       _$TabTypeEnumMap[instance.storedDefaultCreateTabType]!,
+  'newTabPosition': _$NewTabPositionEnumMap[instance.newTabPosition]!,
   'tabIntentOpenSetting':
       _$TabIntentOpenSettingEnumMap[instance.tabIntentOpenSetting]!,
   'autoHideTabBar': instance.autoHideTabBar,
@@ -885,6 +904,11 @@ const _$TabTypeEnumMap = {
   TabType.isolated: 'isolated',
 };
 
+const _$NewTabPositionEnumMap = {
+  NewTabPosition.first: 'first',
+  NewTabPosition.end: 'end',
+};
+
 const _$TabIntentOpenSettingEnumMap = {
   TabIntentOpenSetting.regular: 'regular',
   TabIntentOpenSetting.private: 'private',

app/lib/features/user/domain/repositories/general_settings.dart

@@ -100,6 +100,10 @@ class GeneralSettingsRepository extends _$GeneralSettingsRepository {
         DriftSqlType.string,
         db.typeMapping,
       ),
+      'newTabPosition': settings['newTabPosition']?.readAs(
+        DriftSqlType.string,
+        db.typeMapping,
+      ),
       'tabIntentOpenSetting': settings['tabIntentOpenSetting']?.readAs(
         DriftSqlType.string,
         db.typeMapping,

app/lib/features/user/domain/repositories/general_settings.g.dart

@@ -35,7 +35,7 @@ final class GeneralSettingsRepositoryProvider
 }
 
 String _$generalSettingsRepositoryHash() =>
-    r'44aaf9f3c8c6e1a8c6569ed59b76fa0360528578';
+    r'04764c3b9a71aec077ab2b7894d117f993678b2e';
 
 abstract class _$GeneralSettingsRepository
     extends $StreamNotifier<GeneralSettings> {