Fix #99971

src/vs/workbench/contrib/extensions/browser/extensionEditor.ts

@@ -903,6 +903,7 @@ export class ExtensionEditor extends EditorPane {
 					this.renderLocalizations(content, manifest, layout),
 					this.renderCustomEditors(content, manifest, layout),
 					this.renderAuthentication(content, manifest, layout),
+					this.renderActivationEvents(content, manifest, layout),
 				];
 
 				scrollableContent.scanDomNode();
@@ -1417,6 +1418,21 @@ export class ExtensionEditor extends EditorPane {
 		return true;
 	}
 
+	private renderActivationEvents(container: HTMLElement, manifest: IExtensionManifest, onDetailsToggle: Function): boolean {
+		const activationEvents = manifest.activationEvents || [];
+		if (!activationEvents.length) {
+			return false;
+		}
+
+		const details = $('details', { open: true, ontoggle: onDetailsToggle },
+			$('summary', { tabindex: '0' }, localize('activation events', "Activation Events ({0})", activationEvents.length)),
+			$('ul', undefined, ...activationEvents.map(activationEvent => $('li', undefined, activationEvent)))
+		);
+
+		append(container, details);
+		return true;
+	}
+
 	private resolveKeybinding(rawKeyBinding: IKeyBinding): ResolvedKeybinding | null {
 		let key: string | undefined;