diff --git a/HACKING.md b/HACKING.md
index 6d87c52c..129eff11 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -20,9 +20,6 @@ need in gnome-shell.
 Generally, we follow [GJS coding style][coding-style], which in short is:
 indent 4 spaces, no tabs, space after comma, no space after function call.
 
-The Emacs mode line for this
-/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
-
 Imports should be at the top, in two groups, one for standard
 imports (like imports.lang or imports.dbus) and introspection,
 the other for Shell API. Within the same group, put everything
diff --git a/extensions/apps-menu/extension.js b/extensions/apps-menu/extension.js
index 17bcf3b5..688c7595 100644
--- a/extensions/apps-menu/extension.js
+++ b/extensions/apps-menu/extension.js
@@ -5,7 +5,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
 import Atk from 'gi://Atk';
 import Clutter from 'gi://Clutter';
 import Gio from 'gi://Gio';
diff --git a/extensions/auto-move-windows/extension.js b/extensions/auto-move-windows/extension.js
index 4f972cd7..34decce7 100644
--- a/extensions/auto-move-windows/extension.js
+++ b/extensions/auto-move-windows/extension.js
@@ -4,9 +4,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-// -*- mode: js2; indent-tabs-mode: nil; js2-basic-offset: 4 -*-
-// Start apps on custom workspaces
-
 import Shell from 'gi://Shell';
 
 import {Extension} from 'resource:///org/gnome/shell/extensions/extension.js';
diff --git a/extensions/auto-move-windows/prefs.js b/extensions/auto-move-windows/prefs.js
index 10c14717..41ed7b22 100644
--- a/extensions/auto-move-windows/prefs.js
+++ b/extensions/auto-move-windows/prefs.js
@@ -3,9 +3,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-// -*- mode: js2; indent-tabs-mode: nil; js2-basic-offset: 4 -*-
-// Start apps on custom workspaces
-
 import Adw from 'gi://Adw';
 import Gio from 'gi://Gio';
 import GLib from 'gi://GLib';
diff --git a/extensions/native-window-placement/extension.js b/extensions/native-window-placement/extension.js
index 03935275..9daa9537 100644
--- a/extensions/native-window-placement/extension.js
+++ b/extensions/native-window-placement/extension.js
@@ -5,7 +5,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-// -*- mode: js2; indent-tabs-mode: nil; js2-basic-offset: 4 -*-
 import Clutter from 'gi://Clutter';
 
 import {Extension, InjectionManager} from 'resource:///org/gnome/shell/extensions/extension.js';
diff --git a/extensions/places-menu/extension.js b/extensions/places-menu/extension.js
index 1431878b..bf68c029 100644
--- a/extensions/places-menu/extension.js
+++ b/extensions/places-menu/extension.js
@@ -5,7 +5,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
 import Clutter from 'gi://Clutter';
 import GObject from 'gi://GObject';
 import St from 'gi://St';
diff --git a/extensions/user-theme/extension.js b/extensions/user-theme/extension.js
index fd7a7b43..7cc73e0f 100644
--- a/extensions/user-theme/extension.js
+++ b/extensions/user-theme/extension.js
@@ -5,9 +5,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-// -*- mode: js2; indent-tabs-mode: nil; js2-basic-offset: 4 -*-
-// Load shell theme from ~/.local/share/themes/name/gnome-shell
-
 import Gio from 'gi://Gio';
 
 import {Extension} from 'resource:///org/gnome/shell/extensions/extension.js';
diff --git a/extensions/user-theme/prefs.js b/extensions/user-theme/prefs.js
index 9b4cf951..29f4993f 100644
--- a/extensions/user-theme/prefs.js
+++ b/extensions/user-theme/prefs.js
@@ -2,8 +2,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-// -*- mode: js2; indent-tabs-mode: nil; js2-basic-offset: 4 -*-
-
 // we use async/await here to not block the mainloop, not to parallelize
 /* eslint-disable no-await-in-loop */
 
diff --git a/extensions/window-list/prefs.js b/extensions/window-list/prefs.js
index 6b2d5958..9c93af8a 100644
--- a/extensions/window-list/prefs.js
+++ b/extensions/window-list/prefs.js
@@ -3,7 +3,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-// -*- mode: js2; indent-tabs-mode: nil; js2-basic-offset: 4 -*-
 import Adw from 'gi://Adw';
 import Gio from 'gi://Gio';
 import GLib from 'gi://GLib';
diff --git a/extensions/windowsNavigator/extension.js b/extensions/windowsNavigator/extension.js
index f40c4a10..49dce1e8 100644
--- a/extensions/windowsNavigator/extension.js
+++ b/extensions/windowsNavigator/extension.js
@@ -6,7 +6,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
 import Clutter from 'gi://Clutter';
 import Graphene from 'gi://Graphene';
 import St from 'gi://St';
diff --git a/extensions/workspace-indicator/extension.js b/extensions/workspace-indicator/extension.js
index f9c7dd9a..2f83497c 100644
--- a/extensions/workspace-indicator/extension.js
+++ b/extensions/workspace-indicator/extension.js
@@ -4,7 +4,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-// -*- mode: js2; indent-tabs-mode: nil; js2-basic-offset: 4 -*-
 import Clutter from 'gi://Clutter';
 import Gio from 'gi://Gio';
 import GObject from 'gi://GObject';
diff --git a/extensions/workspace-indicator/prefs.js b/extensions/workspace-indicator/prefs.js
index ea0546bf..124606d1 100644
--- a/extensions/workspace-indicator/prefs.js
+++ b/extensions/workspace-indicator/prefs.js
@@ -3,7 +3,6 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-// -*- mode: js2; indent-tabs-mode: nil; js2-basic-offset: 4 -*-
 import Adw from 'gi://Adw';
 import Gio from 'gi://Gio';
 import GLib from 'gi://GLib';