diff --git a/src/vs/workbench/contrib/extensions/electron-browser/extensionsActions.ts b/src/vs/workbench/contrib/extensions/electron-browser/extensionsActions.ts
index 965928a8979eb302300334b885d1e82f057417c9..72b25d0cce69f02a7a72d597a388376903e815dc 100644
--- a/src/vs/workbench/contrib/extensions/electron-browser/extensionsActions.ts
+++ b/src/vs/workbench/contrib/extensions/electron-browser/extensionsActions.ts
@@ -303,12 +303,14 @@ export class RemoteInstallAction extends ExtensionAction {
 	private updateLabel(): void {
 		if (this.installing) {
 			this.label = RemoteInstallAction.INSTALLING_LABEL;
+			this.tooltip = this.label;
 			return;
 		}
 		const remoteAuthority = this.environmentService.configuration.remoteAuthority;
 		if (remoteAuthority) {
 			const host = this.labelService.getHostLabel(REMOTE_HOST_SCHEME, this.environmentService.configuration.remoteAuthority) || localize('remote', "Remote");
 			this.label = `${RemoteInstallAction.INSTALL_LABEL} on ${host}`;
+			this.tooltip = this.label;
 			return;
 		}
 	}
diff --git a/src/vs/workbench/contrib/extensions/electron-browser/media/extensionActions.css b/src/vs/workbench/contrib/extensions/electron-browser/media/extensionActions.css
index c2eaab12e13f943ec1da2bd6825be1bc8e7a55e5..10c60a11eaaeaa42736ef657fc0c4e6164bcb230 100644
--- a/src/vs/workbench/contrib/extensions/electron-browser/media/extensionActions.css
+++ b/src/vs/workbench/contrib/extensions/electron-browser/media/extensionActions.css
@@ -7,6 +7,9 @@
 	padding: 0 5px;
 	outline-offset: 2px;
 	line-height: initial;
+	overflow: hidden;
+	white-space: nowrap;
+	text-overflow: ellipsis;
 }
 
 .monaco-action-bar .action-item .action-label.clear-extensions {
diff --git a/src/vs/workbench/contrib/extensions/electron-browser/media/extensionEditor.css b/src/vs/workbench/contrib/extensions/electron-browser/media/extensionEditor.css
index db92b4d7256ffb315d6072f4fa466cf5e215a26a..b68dd3b2cbad4162a5821ac656e9ba9313c923c2 100644
--- a/src/vs/workbench/contrib/extensions/electron-browser/media/extensionEditor.css
+++ b/src/vs/workbench/contrib/extensions/electron-browser/media/extensionEditor.css
@@ -145,6 +145,9 @@
 	padding: 1px 6px;
 }
 
+.extension-editor > .header > .details > .actions > .monaco-action-bar > .actions-container > .action-item > .extension-action {
+	max-width: 300px;
+}
 
 .extension-editor > .header > .details > .subtext-container {
 	display: block;
diff --git a/src/vs/workbench/contrib/extensions/electron-browser/media/extensionsViewlet.css b/src/vs/workbench/contrib/extensions/electron-browser/media/extensionsViewlet.css
index 136ceaffff6ca83bbe4a8a887140291859dac564..e97db777fa55f33a8455a3fe865b1bb4342fd45d 100644
--- a/src/vs/workbench/contrib/extensions/electron-browser/media/extensionsViewlet.css
+++ b/src/vs/workbench/contrib/extensions/electron-browser/media/extensionsViewlet.css
@@ -224,6 +224,14 @@
 	flex-wrap: wrap-reverse;
 }
 
+.extensions-viewlet > .extensions .extension > .details > .footer > .monaco-action-bar > .actions-container .extension-action {
+	max-width: 150px;
+}
+
+.extensions-viewlet.narrow > .extensions .extension > .details > .footer > .monaco-action-bar > .actions-container .extension-action {
+	max-width: 100px;
+}
+
 .extensions-viewlet > .extensions .extension > .details > .footer > .monaco-action-bar .action-label {
 	margin-top: 0.3em;
 	margin-left: 0.3em;