fixes #52658

src/vs/base/browser/ui/list/listWidget.ts

@@ -4,6 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 
 import 'vs/css!./list';
+import { localize } from 'vs/nls';
 import { IDisposable, dispose } from 'vs/base/common/lifecycle';
 import { isNumber } from 'vs/base/common/types';
 import { range, firstIndex } from 'vs/base/common/arrays';
@@ -934,7 +935,7 @@ export class List<T> implements ISpliceable<T>, IDisposable {
 		this.onSelectionChange(this._onSelectionChange, this, this.disposables);
 
 		if (options.ariaLabel) {
-			this.view.domNode.setAttribute('aria-label', options.ariaLabel);
+			this.view.domNode.setAttribute('aria-label', localize('aria list', "{0}. Use the navigation keys to navigate.", options.ariaLabel));
 		}
 
 		this.style(options);

src/vs/workbench/parts/extensions/electron-browser/extensionsViews.ts

@@ -85,7 +85,7 @@ export class ExtensionsListView extends ViewletPanel {
 		const delegate = new Delegate();
 		const renderer = this.instantiationService.createInstance(Renderer);
 		this.list = this.instantiationService.createInstance(WorkbenchPagedList, this.extensionsList, delegate, [renderer], {
-			ariaLabel: localize('extensions', "Extensions. Use the navigation keys to navigate extensions."),
+			ariaLabel: localize('extensions', "Extensions"),
 			multipleSelectionSupport: false
 		}) as WorkbenchPagedList<IExtension>;
 		this.disposables.push(this.list);