scroll to top/bottom

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

@@ -106,6 +106,16 @@ class TabSession extends _$TabSession {
     return _sessionService.dispatchKeyEvent(keyCode: 93);
   }
 
+  Future<void> scrollToTop() {
+    // Android KeyEvent.KEYCODE_MOVE_HOME = 122
+    return _sessionService.dispatchKeyEvent(keyCode: 122);
+  }
+
+  Future<void> scrollToBottom() {
+    // Android KeyEvent.KEYCODE_MOVE_END = 123
+    return _sessionService.dispatchKeyEvent(keyCode: 123);
+  }
+
   @override
   void build({required String? tabId}) {
     _sessionService = (tabId != null)

app/lib/features/geckoview/features/browser/features/contextual_toolbar/presentation/toolbar_button_registry.dart

@@ -353,6 +353,16 @@ final List<ToolbarButtonDefinition> toolbarButtonRegistry = [
                       .pageUp();
                 }
               },
+        onLongPress: scope.isPreview
+            ? () {}
+            : () async {
+                final tabId = scope.selectedTabId;
+                if (tabId != null) {
+                  await ref
+                      .read(tabSessionProvider(tabId: tabId).notifier)
+                      .scrollToTop();
+                }
+              },
         icon: const Icon(MdiIcons.chevronDoubleUp),
       );
     },
@@ -373,6 +383,16 @@ final List<ToolbarButtonDefinition> toolbarButtonRegistry = [
                       .pageDown();
                 }
               },
+        onLongPress: scope.isPreview
+            ? () {}
+            : () async {
+                final tabId = scope.selectedTabId;
+                if (tabId != null) {
+                  await ref
+                      .read(tabSessionProvider(tabId: tabId).notifier)
+                      .scrollToBottom();
+                }
+              },
         icon: const Icon(MdiIcons.chevronDoubleDown),
       );
     },