fixes #58872

src/vs/base/browser/ui/actionbar/actionbar.ts

@@ -701,7 +701,7 @@ export class ActionBar extends Disposable implements IActionRunner {
 		}
 	}
 
-	private focusNext(): void {
+	protected focusNext(): void {
 		if (typeof this.focusedItem === 'undefined') {
 			this.focusedItem = this.items.length - 1;
 		}
@@ -721,7 +721,7 @@ export class ActionBar extends Disposable implements IActionRunner {
 		this.updateFocus();
 	}
 
-	private focusPrevious(): void {
+	protected focusPrevious(): void {
 		if (typeof this.focusedItem === 'undefined') {
 			this.focusedItem = 0;
 		}

src/vs/base/browser/ui/menu/menu.ts

@@ -18,6 +18,7 @@ import { DomScrollableElement } from 'vs/base/browser/ui/scrollbar/scrollableEle
 import { ScrollbarVisibility, ScrollEvent } from 'vs/base/common/scrollable';
 import { Event, Emitter } from 'vs/base/common/event';
 import { AnchorAlignment } from 'vs/base/browser/ui/contextview/contextview';
+import { isLinux } from 'vs/base/common/platform';
 
 export const MENU_MNEMONIC_REGEX: RegExp = /\(&{1,2}(.)\)|&{1,2}(.)/;
 export const MENU_ESCAPED_MNEMONIC_REGEX: RegExp = /(?:&){1,2}(.)/;
@@ -118,6 +119,22 @@ export class Menu extends ActionBar {
 			}));
 		}
 
+		if (isLinux) {
+			this._register(addDisposableListener(menuElement, EventType.KEY_DOWN, e => {
+				const event = new StandardKeyboardEvent(e);
+
+				if (event.equals(KeyCode.Home) || event.equals(KeyCode.PageUp)) {
+					this.focusedItem = this.items.length - 1;
+					this.focusNext();
+					EventHelper.stop(e, true);
+				} else if (event.equals(KeyCode.End) || event.equals(KeyCode.PageDown)) {
+					this.focusedItem = 0;
+					this.focusPrevious();
+					EventHelper.stop(e, true);
+				}
+			}));
+		}
+
 		this._register(addDisposableListener(this.domNode, EventType.MOUSE_OUT, e => {
 			let relatedTarget = e.relatedTarget as HTMLElement;
 			if (!isAncestor(relatedTarget, this.domNode)) {