diff --git a/extensions/horizontal-workspaces/extension.js b/extensions/horizontal-workspaces/extension.js
new file mode 100644
index 00000000..b5f04355
--- /dev/null
+++ b/extensions/horizontal-workspaces/extension.js
@@ -0,0 +1,38 @@
+/* exported init */
+const { Meta } = imports.gi;
+
+const { ThumbnailsBox } = imports.ui.workspaceThumbnail;
+
+class Extension {
+    constructor() {
+        this._origUpdateSwitcherVisibility =
+            ThumbnailsBox.prototype._updateSwitcherVisibility;
+    }
+
+    enable() {
+        global.workspace_manager.override_workspace_layout(
+            Meta.DisplayCorner.TOPLEFT,
+            false,
+            1,
+            -1);
+
+        ThumbnailsBox.prototype._updateSwitcherVisibility = function() {
+            this.hide();
+        };
+    }
+
+    disable() {
+        global.workspace_manager.override_workspace_layout(
+            Meta.DisplayCorner.TOPLEFT,
+            false,
+            -1,
+            1);
+
+        ThumbnailsBox.prototype._updateSwitcherVisibility =
+            this._origUpdateSwitcherVisibility;
+    }
+}
+
+function init() {
+    return new Extension();
+}
diff --git a/extensions/horizontal-workspaces/meson.build b/extensions/horizontal-workspaces/meson.build
new file mode 100644
index 00000000..48504f63
--- /dev/null
+++ b/extensions/horizontal-workspaces/meson.build
@@ -0,0 +1,5 @@
+extension_data += configure_file(
+  input: metadata_name + '.in',
+  output: metadata_name,
+  configuration: metadata_conf
+)
diff --git a/extensions/horizontal-workspaces/metadata.json.in b/extensions/horizontal-workspaces/metadata.json.in
new file mode 100644
index 00000000..f109e068
--- /dev/null
+++ b/extensions/horizontal-workspaces/metadata.json.in
@@ -0,0 +1,10 @@
+{
+"extension-id": "@extension_id@",
+"uuid": "@uuid@",
+"settings-schema": "@gschemaname@",
+"gettext-domain": "@gettext_domain@",
+"name": "Horizontal workspaces",
+"description": "Use a horizontal workspace layout",
+"shell-version": [ "@shell_current@" ],
+"url": "@url@"
+}
diff --git a/extensions/horizontal-workspaces/stylesheet.css b/extensions/horizontal-workspaces/stylesheet.css
new file mode 100644
index 00000000..25134b65
--- /dev/null
+++ b/extensions/horizontal-workspaces/stylesheet.css
@@ -0,0 +1 @@
+/* This extensions requires no special styling */
diff --git a/meson.build b/meson.build
index 1756face..16a48cf3 100644
--- a/meson.build
+++ b/meson.build
@@ -33,6 +33,7 @@ uuid_suffix = '@gnome-shell-extensions.gcampax.github.com'
 
 classic_extensions = [
   'apps-menu',
+  'horizontal-workspaces',
   'places-menu',
   'launch-new-instance',
   'window-list'