diff --git a/apps/weblibre/lib/features/geckoview/features/preferences/data/repositories/preference_migrations.dart b/apps/weblibre/lib/features/geckoview/features/preferences/data/repositories/preference_migrations.dart
new file mode 100644
index 00000000..57953c37
--- /dev/null
+++ b/apps/weblibre/lib/features/geckoview/features/preferences/data/repositories/preference_migrations.dart
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2024-2026 Fabian Freund.
+ *
+ * This file is part of WebLibre
+ * (see https://weblibre.eu).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+typedef PreferenceMigrationStep = Future<void> Function();
+
+class PreferenceMigrationRunner {
+  const PreferenceMigrationRunner({
+    required this.schemaVersion,
+    required this.steps,
+  });
+
+  final int schemaVersion;
+  final Map<int, PreferenceMigrationStep> steps;
+
+  Future<int> run({
+    required Future<int> Function() readVersion,
+    required Future<void> Function(int version) writeVersion,
+  }) async {
+    var version = await readVersion();
+
+    while (version < schemaVersion) {
+      final step = steps[version];
+      if (step == null) {
+        throw StateError(
+          'Missing preference migration from version '
+          '$version to ${version + 1}',
+        );
+      }
+
+      await step();
+      version++;
+      await writeVersion(version);
+    }
+
+    return version;
+  }
+}
diff --git a/apps/weblibre/lib/features/geckoview/features/preferences/data/repositories/preference_settings.dart b/apps/weblibre/lib/features/geckoview/features/preferences/data/repositories/preference_settings.dart
index fb5063e1..46449a88 100644
--- a/apps/weblibre/lib/features/geckoview/features/preferences/data/repositories/preference_settings.dart
+++ b/apps/weblibre/lib/features/geckoview/features/preferences/data/repositories/preference_settings.dart
@@ -21,20 +21,83 @@ import 'dart:async';
 import 'dart:convert';
 
 import 'package:collection/collection.dart';
+import 'package:drift/drift.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_mozilla_components/flutter_mozilla_components.dart';
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:rxdart/rxdart.dart';
 import 'package:weblibre/core/logger.dart';
+import 'package:weblibre/features/geckoview/features/preferences/data/repositories/preference_migrations.dart';
 import 'package:weblibre/features/geckoview/features/preferences/data/models/preference_setting.dart';
 import 'package:weblibre/features/geckoview/features/tabs/utils/setting_groups_serializer.dart';
+import 'package:weblibre/features/user/data/providers.dart';
 
 part 'preference_settings.g.dart';
 
+const _preferenceMigrationVersionKey = 'preferenceMigrationVersion';
+const _preferenceMigrationPartitionKey = 'preferenceMigration';
+const _preferenceMigrationSchemaVersion = 1;
+const _mainProcessDisableJitPref =
+    'javascript.options.main_process_disable_jit';
+
 @Riverpod(keepAlive: true)
 class StartupPreferenceEnforcementService
     extends _$StartupPreferenceEnforcementService {
+  final _prefManager = GeckoPrefService();
+
+  PreferenceMigrationRunner get _migrationRunner => PreferenceMigrationRunner(
+    schemaVersion: _preferenceMigrationSchemaVersion,
+    steps: {
+      0: () => _prefManager.resetPrefs([_mainProcessDisableJitPref]),
+    },
+  );
+
+  Future<int> _readPreferenceMigrationVersion() async {
+    final db = ref.read(userDatabaseProvider);
+    final value = await db.settingDao.getSettingValue(
+      _preferenceMigrationVersionKey,
+    );
+
+    return value?.readAs(DriftSqlType.int, db.typeMapping) ?? 0;
+  }
+
+  Future<void> _writePreferenceMigrationVersion(int version) async {
+    await ref
+        .read(userDatabaseProvider)
+        .settingDao
+        .updateSetting(
+          _preferenceMigrationVersionKey,
+          _preferenceMigrationPartitionKey,
+          version,
+        );
+  }
+
+  Future<void> _runMigrations() async {
+    final previousVersion = await _readPreferenceMigrationVersion();
+    final currentVersion = await _migrationRunner.run(
+      readVersion: _readPreferenceMigrationVersion,
+      writeVersion: _writePreferenceMigrationVersion,
+    );
+
+    if (currentVersion > previousVersion) {
+      logger.i(
+        'Applied preference migrations '
+        '$previousVersion -> $currentVersion',
+      );
+    }
+  }
+
   Future<void> apply() async {
+    try {
+      await _runMigrations();
+    } catch (e, s) {
+      logger.w(
+        'Failed to run preference migrations, will retry on next launch',
+        error: e,
+        stackTrace: s,
+      );
+    }
+
     final content = await ref.read(_preferenceSettingContentProvider.future);
     final groups = deserializePreferenceSettingGroups(
       PreferencePartition.user,
@@ -58,7 +121,7 @@ class StartupPreferenceEnforcementService
       return;
     }
 
-    final currentPrefs = await GeckoPrefService().getPrefs(
+    final currentPrefs = await _prefManager.getPrefs(
       startupPrefs.keys.toList(),
     );
 
@@ -77,7 +140,7 @@ class StartupPreferenceEnforcementService
 
     if (prefsToEnforce.isNotEmpty) {
       try {
-        await GeckoPrefService().applyPrefs(prefsToEnforce);
+        await _prefManager.applyPrefs(prefsToEnforce);
       } catch (e) {
         logger.w(
           'Failed to enforce startup preferences, will retry on next launch',
diff --git a/apps/weblibre/lib/features/user/data/database/daos/setting.dart b/apps/weblibre/lib/features/user/data/database/daos/setting.dart
index 6f4b5709..04dace69 100644
--- a/apps/weblibre/lib/features/user/data/database/daos/setting.dart
+++ b/apps/weblibre/lib/features/user/data/database/daos/setting.dart
@@ -29,6 +29,11 @@ import 'package:weblibre/features/user/data/database/definitions.drift.dart';
 class SettingDao extends DatabaseAccessor<UserDatabase> with $SettingDaoMixin {
   SettingDao(super.attachedDatabase);
 
+  Future<DriftAny?> getSettingValue(String key) async {
+    final query = db.setting.select()..where((r) => r.key.equals(key));
+    return (await query.getSingleOrNull())?.value;
+  }
+
   Future<int> updateSetting(String key, String? partitionKey, Object? value) {
     final normalizedValue = (value is Iterable || value is Map)
         ? jsonEncode(value)