diff --git a/widget/gtk/WakeLockListener.cpp b/widget/gtk/WakeLockListener.cpp
index d93ca51718da..6d468cf72844 100644
--- a/widget/gtk/WakeLockListener.cpp
+++ b/widget/gtk/WakeLockListener.cpp
@@ -16,6 +16,12 @@
 #    include "prlink.h"
 #  endif
 
+#  if defined(MOZ_WAYLAND)
+#    include "mozilla/widget/nsWaylandDisplay.h"
+#    include "nsWindow.h"
+#    include "mozilla/dom/power/PowerManagerService.h"
+#  endif
+
 #  define FREEDESKTOP_SCREENSAVER_TARGET "org.freedesktop.ScreenSaver"
 #  define FREEDESKTOP_SCREENSAVER_OBJECT "/ScreenSaver"
 #  define FREEDESKTOP_SCREENSAVER_INTERFACE "org.freedesktop.ScreenSaver"
@@ -37,6 +43,9 @@ enum DesktopEnvironment {
   GNOME,
 #  if defined(MOZ_X11)
   XScreenSaver,
+#  endif
+#  if defined(MOZ_WAYLAND)
+  WaylandIdleInhibit,
 #  endif
   Unsupported,
 };
@@ -44,12 +53,17 @@ enum DesktopEnvironment {
 class WakeLockTopic {
  public:
   WakeLockTopic(const nsAString& aTopic, DBusConnection* aConnection)
-      : mTopic(NS_ConvertUTF16toUTF8(aTopic)),
+      :
+#  if defined(MOZ_WAYLAND)
+        mWaylandInhibitor(nullptr),
+#  endif
+        mTopic(NS_ConvertUTF16toUTF8(aTopic)),
         mConnection(aConnection),
         mDesktopEnvironment(FreeDesktop),
         mInhibitRequest(0),
         mShouldInhibit(false),
-        mWaitingForReply(false) {}
+        mWaitingForReply(false) {
+  }
 
   nsresult InhibitScreensaver(void);
   nsresult UninhibitScreensaver(void);
@@ -67,6 +81,13 @@ class WakeLockTopic {
   static bool InhibitXScreenSaver(bool inhibit);
 #  endif
 
+#  if defined(MOZ_WAYLAND)
+  zwp_idle_inhibitor_v1* mWaylandInhibitor;
+  static bool CheckWaylandIdleInhibitSupport();
+  bool InhibitWaylandIdle();
+  bool UninhibitWaylandIdle();
+#  endif
+
   static void ReceiveInhibitReply(DBusPendingCall* aPending, void* aUserData);
   void InhibitFailed();
   void InhibitSucceeded(uint32_t aInhibitRequest);
@@ -197,6 +218,49 @@ bool WakeLockTopic::InhibitXScreenSaver(bool inhibit) {
 
 #  endif
 
+#  if defined(MOZ_WAYLAND)
+
+/* static */
+bool WakeLockTopic::CheckWaylandIdleInhibitSupport() {
+  GdkDisplay* gDisplay = gdk_display_get_default();
+  if (GDK_IS_X11_DISPLAY(gDisplay)) return false;
+
+  widget::nsWaylandDisplay* waylandDisplay =
+      widget::WaylandDisplayGet(gDisplay);
+  if (!waylandDisplay->GetIdleInhibitManager()) return false;
+
+  return true;
+}
+
+bool WakeLockTopic::InhibitWaylandIdle() {
+  GdkDisplay* gDisplay = gdk_display_get_default();
+
+  widget::nsWaylandDisplay* waylandDisplay =
+      widget::WaylandDisplayGet(gDisplay);
+
+  nsWindow* focusedWindow = nsWindow::GetFocusedWindow();
+  if (!focusedWindow) return false;
+
+  UninhibitWaylandIdle();
+
+  mWaylandInhibitor = zwp_idle_inhibit_manager_v1_create_inhibitor(
+      waylandDisplay->GetIdleInhibitManager(),
+      focusedWindow->GetWaylandSurface());
+
+  return true;
+}
+
+bool WakeLockTopic::UninhibitWaylandIdle() {
+  if (mWaylandInhibitor == nullptr) return false;
+
+  zwp_idle_inhibitor_v1_destroy(mWaylandInhibitor);
+  mWaylandInhibitor = nullptr;
+
+  return true;
+}
+
+#  endif
+
 bool WakeLockTopic::SendInhibit() {
   bool sendOk = false;
 
@@ -210,6 +274,10 @@ bool WakeLockTopic::SendInhibit() {
 #  if defined(MOZ_X11)
     case XScreenSaver:
       return InhibitXScreenSaver(true);
+#  endif
+#  if defined(MOZ_WAYLAND)
+    case WaylandIdleInhibit:
+      return InhibitWaylandIdle();
 #  endif
     case Unsupported:
       return false;
@@ -239,6 +307,11 @@ bool WakeLockTopic::SendUninhibit() {
     return InhibitXScreenSaver(false);
   }
 #  endif
+#  if defined(MOZ_WAYLAND)
+  else if (mDesktopEnvironment == WaylandIdleInhibit) {
+    return UninhibitWaylandIdle();
+  }
+#  endif
 
   if (!message) {
     return false;
@@ -299,6 +372,10 @@ void WakeLockTopic::InhibitFailed() {
 #  if defined(MOZ_X11)
   } else if (mDesktopEnvironment == GNOME && CheckXScreenSaverSupport()) {
     mDesktopEnvironment = XScreenSaver;
+#  endif
+#  if defined(MOZ_WAYLAND)
+  } else if (mDesktopEnvironment == GNOME && CheckWaylandIdleInhibitSupport()) {
+    mDesktopEnvironment = WaylandIdleInhibit;
 #  endif
   } else {
     mDesktopEnvironment = Unsupported;
diff --git a/widget/gtk/nsWaylandDisplay.cpp b/widget/gtk/nsWaylandDisplay.cpp
index ccd68ddff478..fad5cff5184a 100644
--- a/widget/gtk/nsWaylandDisplay.cpp
+++ b/widget/gtk/nsWaylandDisplay.cpp
@@ -147,6 +147,11 @@ void nsWaylandDisplay::SetPrimarySelectionDeviceManager(
   mPrimarySelectionDeviceManager = aPrimarySelectionDeviceManager;
 }
 
+void nsWaylandDisplay::SetIdleInhibitManager(
+    zwp_idle_inhibit_manager_v1* aIdleInhibitManager) {
+  mIdleInhibitManager = aIdleInhibitManager;
+}
+
 void nsWaylandDisplay::SetDmabuf(zwp_linux_dmabuf_v1* aDmabuf) {
   mDmabuf = aDmabuf;
 }
@@ -238,6 +243,13 @@ static void global_registry_handler(void* data, wl_registry* registry,
     wl_proxy_set_queue((struct wl_proxy*)primary_selection_device_manager,
                        display->GetEventQueue());
     display->SetPrimarySelectionDeviceManager(primary_selection_device_manager);
+  } else if (strcmp(interface, "zwp_idle_inhibit_manager_v1") == 0) {
+    auto idle_inhibit_manager =
+        static_cast<zwp_idle_inhibit_manager_v1*>(wl_registry_bind(
+            registry, id, &zwp_idle_inhibit_manager_v1_interface, 1));
+    wl_proxy_set_queue((struct wl_proxy*)idle_inhibit_manager,
+                       display->GetEventQueue());
+    display->SetIdleInhibitManager(idle_inhibit_manager);
   } else if (strcmp(interface, "wl_compositor") == 0) {
     // Requested wl_compositor version 4 as we need wl_surface_damage_buffer().
     auto compositor = static_cast<wl_compositor*>(
@@ -388,6 +400,7 @@ nsWaylandDisplay::nsWaylandDisplay(wl_display* aDisplay)
       mShm(nullptr),
       mSyncCallback(nullptr),
       mPrimarySelectionDeviceManager(nullptr),
+      mIdleInhibitManager(nullptr),
       mRegistry(nullptr),
       mDmabuf(nullptr),
       mGbmDevice(nullptr),
diff --git a/widget/gtk/nsWaylandDisplay.h b/widget/gtk/nsWaylandDisplay.h
index 936d26444fff..bdab12f4dba5 100644
--- a/widget/gtk/nsWaylandDisplay.h
+++ b/widget/gtk/nsWaylandDisplay.h
@@ -10,6 +10,7 @@
 
 #include "mozilla/widget/mozwayland.h"
 #include "mozilla/widget/gtk-primary-selection-client-protocol.h"
+#include "mozilla/widget/idle-inhibit-unstable-v1-client-protocol.h"
 
 #include "base/message_loop.h"  // for MessageLoop
 #include "base/task.h"          // for NewRunnableMethod, etc
@@ -59,6 +60,9 @@ class nsWaylandDisplay {
   gtk_primary_selection_device_manager* GetPrimarySelectionDeviceManager(void) {
     return mPrimarySelectionDeviceManager;
   };
+  zwp_idle_inhibit_manager_v1* GetIdleInhibitManager(void) {
+    return mIdleInhibitManager;
+  }
 
   void SetShm(wl_shm* aShm);
   void SetCompositor(wl_compositor* aCompositor);
@@ -67,6 +71,7 @@ class nsWaylandDisplay {
   void SetSeat(wl_seat* aSeat);
   void SetPrimarySelectionDeviceManager(
       gtk_primary_selection_device_manager* aPrimarySelectionDeviceManager);
+  void SetIdleInhibitManager(zwp_idle_inhibit_manager_v1* aIdleInhibitManager);
 
   void Shutdown();
 
@@ -101,6 +106,7 @@ class nsWaylandDisplay {
   wl_shm* mShm;
   wl_callback* mSyncCallback;
   gtk_primary_selection_device_manager* mPrimarySelectionDeviceManager;
+  zwp_idle_inhibit_manager_v1* mIdleInhibitManager;
   wl_registry* mRegistry;
   zwp_linux_dmabuf_v1* mDmabuf;
   gbm_device* mGbmDevice;
diff --git a/widget/gtk/nsWindow.cpp b/widget/gtk/nsWindow.cpp
index 89748404988c..2fb1b6f7ed3e 100644
--- a/widget/gtk/nsWindow.cpp
+++ b/widget/gtk/nsWindow.cpp
@@ -7736,4 +7736,6 @@ void nsWindow::SetEGLNativeWindowSize(
                                       aEGLWindowSize.height);
   }
 }
+
+nsWindow* nsWindow::GetFocusedWindow() { return gFocusWindow; }
 #endif
diff --git a/widget/gtk/nsWindow.h b/widget/gtk/nsWindow.h
index 3c70cb46f853..01ea534e7e24 100644
--- a/widget/gtk/nsWindow.h
+++ b/widget/gtk/nsWindow.h
@@ -230,6 +230,7 @@ class nsWindow final : public nsBaseWidget {
 
 #ifdef MOZ_WAYLAND
   void SetEGLNativeWindowSize(const LayoutDeviceIntSize& aEGLWindowSize);
+  static nsWindow* GetFocusedWindow();
 #endif
 
   RefPtr<mozilla::gfx::VsyncSource> GetVsyncSource() override;
diff --git a/widget/gtk/wayland/idle-inhibit-unstable-v1-client-protocol.h b/widget/gtk/wayland/idle-inhibit-unstable-v1-client-protocol.h
new file mode 100644
index 000000000000..3ae2303b3cb3
--- /dev/null
+++ b/widget/gtk/wayland/idle-inhibit-unstable-v1-client-protocol.h
@@ -0,0 +1,228 @@
+/* Generated by wayland-scanner 1.16.0 */
+
+#ifndef IDLE_INHIBIT_UNSTABLE_V1_CLIENT_PROTOCOL_H
+#define IDLE_INHIBIT_UNSTABLE_V1_CLIENT_PROTOCOL_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "wayland-client.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @page page_idle_inhibit_unstable_v1 The idle_inhibit_unstable_v1 protocol
+ * @section page_ifaces_idle_inhibit_unstable_v1 Interfaces
+ * - @subpage page_iface_zwp_idle_inhibit_manager_v1 - control behavior when
+ * display idles
+ * - @subpage page_iface_zwp_idle_inhibitor_v1 - context object for inhibiting
+ * idle behavior
+ * @section page_copyright_idle_inhibit_unstable_v1 Copyright
+ * <pre>
+ *
+ * Copyright © 2015 Samsung Electronics Co., Ltd
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ * </pre>
+ */
+struct wl_surface;
+struct zwp_idle_inhibit_manager_v1;
+struct zwp_idle_inhibitor_v1;
+
+/**
+ * @page page_iface_zwp_idle_inhibit_manager_v1 zwp_idle_inhibit_manager_v1
+ * @section page_iface_zwp_idle_inhibit_manager_v1_desc Description
+ *
+ * This interface permits inhibiting the idle behavior such as screen
+ * blanking, locking, and screensaving.  The client binds the idle manager
+ * globally, then creates idle-inhibitor objects for each surface.
+ *
+ * Warning! The protocol described in this file is experimental and
+ * backward incompatible changes may be made. Backward compatible changes
+ * may be added together with the corresponding interface version bump.
+ * Backward incompatible changes are done by bumping the version number in
+ * the protocol and interface names and resetting the interface version.
+ * Once the protocol is to be declared stable, the 'z' prefix and the
+ * version number in the protocol and interface names are removed and the
+ * interface version number is reset.
+ * @section page_iface_zwp_idle_inhibit_manager_v1_api API
+ * See @ref iface_zwp_idle_inhibit_manager_v1.
+ */
+/**
+ * @defgroup iface_zwp_idle_inhibit_manager_v1 The zwp_idle_inhibit_manager_v1
+ * interface
+ *
+ * This interface permits inhibiting the idle behavior such as screen
+ * blanking, locking, and screensaving.  The client binds the idle manager
+ * globally, then creates idle-inhibitor objects for each surface.
+ *
+ * Warning! The protocol described in this file is experimental and
+ * backward incompatible changes may be made. Backward compatible changes
+ * may be added together with the corresponding interface version bump.
+ * Backward incompatible changes are done by bumping the version number in
+ * the protocol and interface names and resetting the interface version.
+ * Once the protocol is to be declared stable, the 'z' prefix and the
+ * version number in the protocol and interface names are removed and the
+ * interface version number is reset.
+ */
+extern const struct wl_interface zwp_idle_inhibit_manager_v1_interface;
+/**
+ * @page page_iface_zwp_idle_inhibitor_v1 zwp_idle_inhibitor_v1
+ * @section page_iface_zwp_idle_inhibitor_v1_desc Description
+ *
+ * An idle inhibitor prevents the output that the associated surface is
+ * visible on from being set to a state where it is not visually usable due
+ * to lack of user interaction (e.g. blanked, dimmed, locked, set to power
+ * save, etc.)  Any screensaver processes are also blocked from displaying.
+ *
+ * If the surface is destroyed, unmapped, becomes occluded, loses
+ * visibility, or otherwise becomes not visually relevant for the user, the
+ * idle inhibitor will not be honored by the compositor; if the surface
+ * subsequently regains visibility the inhibitor takes effect once again.
+ * Likewise, the inhibitor isn't honored if the system was already idled at
+ * the time the inhibitor was established, although if the system later
+ * de-idles and re-idles the inhibitor will take effect.
+ * @section page_iface_zwp_idle_inhibitor_v1_api API
+ * See @ref iface_zwp_idle_inhibitor_v1.
+ */
+/**
+ * @defgroup iface_zwp_idle_inhibitor_v1 The zwp_idle_inhibitor_v1 interface
+ *
+ * An idle inhibitor prevents the output that the associated surface is
+ * visible on from being set to a state where it is not visually usable due
+ * to lack of user interaction (e.g. blanked, dimmed, locked, set to power
+ * save, etc.)  Any screensaver processes are also blocked from displaying.
+ *
+ * If the surface is destroyed, unmapped, becomes occluded, loses
+ * visibility, or otherwise becomes not visually relevant for the user, the
+ * idle inhibitor will not be honored by the compositor; if the surface
+ * subsequently regains visibility the inhibitor takes effect once again.
+ * Likewise, the inhibitor isn't honored if the system was already idled at
+ * the time the inhibitor was established, although if the system later
+ * de-idles and re-idles the inhibitor will take effect.
+ */
+extern const struct wl_interface zwp_idle_inhibitor_v1_interface;
+
+#define ZWP_IDLE_INHIBIT_MANAGER_V1_DESTROY 0
+#define ZWP_IDLE_INHIBIT_MANAGER_V1_CREATE_INHIBITOR 1
+
+/**
+ * @ingroup iface_zwp_idle_inhibit_manager_v1
+ */
+#define ZWP_IDLE_INHIBIT_MANAGER_V1_DESTROY_SINCE_VERSION 1
+/**
+ * @ingroup iface_zwp_idle_inhibit_manager_v1
+ */
+#define ZWP_IDLE_INHIBIT_MANAGER_V1_CREATE_INHIBITOR_SINCE_VERSION 1
+
+/** @ingroup iface_zwp_idle_inhibit_manager_v1 */
+static inline void zwp_idle_inhibit_manager_v1_set_user_data(
+    struct zwp_idle_inhibit_manager_v1* zwp_idle_inhibit_manager_v1,
+    void* user_data) {
+  wl_proxy_set_user_data((struct wl_proxy*)zwp_idle_inhibit_manager_v1,
+                         user_data);
+}
+
+/** @ingroup iface_zwp_idle_inhibit_manager_v1 */
+static inline void* zwp_idle_inhibit_manager_v1_get_user_data(
+    struct zwp_idle_inhibit_manager_v1* zwp_idle_inhibit_manager_v1) {
+  return wl_proxy_get_user_data((struct wl_proxy*)zwp_idle_inhibit_manager_v1);
+}
+
+static inline uint32_t zwp_idle_inhibit_manager_v1_get_version(
+    struct zwp_idle_inhibit_manager_v1* zwp_idle_inhibit_manager_v1) {
+  return wl_proxy_get_version((struct wl_proxy*)zwp_idle_inhibit_manager_v1);
+}
+
+/**
+ * @ingroup iface_zwp_idle_inhibit_manager_v1
+ *
+ * Destroy the inhibit manager.
+ */
+static inline void zwp_idle_inhibit_manager_v1_destroy(
+    struct zwp_idle_inhibit_manager_v1* zwp_idle_inhibit_manager_v1) {
+  wl_proxy_marshal((struct wl_proxy*)zwp_idle_inhibit_manager_v1,
+                   ZWP_IDLE_INHIBIT_MANAGER_V1_DESTROY);
+
+  wl_proxy_destroy((struct wl_proxy*)zwp_idle_inhibit_manager_v1);
+}
+
+/**
+ * @ingroup iface_zwp_idle_inhibit_manager_v1
+ *
+ * Create a new inhibitor object associated with the given surface.
+ */
+static inline struct zwp_idle_inhibitor_v1*
+zwp_idle_inhibit_manager_v1_create_inhibitor(
+    struct zwp_idle_inhibit_manager_v1* zwp_idle_inhibit_manager_v1,
+    struct wl_surface* surface) {
+  struct wl_proxy* id;
+
+  id = wl_proxy_marshal_constructor(
+      (struct wl_proxy*)zwp_idle_inhibit_manager_v1,
+      ZWP_IDLE_INHIBIT_MANAGER_V1_CREATE_INHIBITOR,
+      &zwp_idle_inhibitor_v1_interface, NULL, surface);
+
+  return (struct zwp_idle_inhibitor_v1*)id;
+}
+
+#define ZWP_IDLE_INHIBITOR_V1_DESTROY 0
+
+/**
+ * @ingroup iface_zwp_idle_inhibitor_v1
+ */
+#define ZWP_IDLE_INHIBITOR_V1_DESTROY_SINCE_VERSION 1
+
+/** @ingroup iface_zwp_idle_inhibitor_v1 */
+static inline void zwp_idle_inhibitor_v1_set_user_data(
+    struct zwp_idle_inhibitor_v1* zwp_idle_inhibitor_v1, void* user_data) {
+  wl_proxy_set_user_data((struct wl_proxy*)zwp_idle_inhibitor_v1, user_data);
+}
+
+/** @ingroup iface_zwp_idle_inhibitor_v1 */
+static inline void* zwp_idle_inhibitor_v1_get_user_data(
+    struct zwp_idle_inhibitor_v1* zwp_idle_inhibitor_v1) {
+  return wl_proxy_get_user_data((struct wl_proxy*)zwp_idle_inhibitor_v1);
+}
+
+static inline uint32_t zwp_idle_inhibitor_v1_get_version(
+    struct zwp_idle_inhibitor_v1* zwp_idle_inhibitor_v1) {
+  return wl_proxy_get_version((struct wl_proxy*)zwp_idle_inhibitor_v1);
+}
+
+/**
+ * @ingroup iface_zwp_idle_inhibitor_v1
+ *
+ * Remove the inhibitor effect from the associated wl_surface.
+ */
+static inline void zwp_idle_inhibitor_v1_destroy(
+    struct zwp_idle_inhibitor_v1* zwp_idle_inhibitor_v1) {
+  wl_proxy_marshal((struct wl_proxy*)zwp_idle_inhibitor_v1,
+                   ZWP_IDLE_INHIBITOR_V1_DESTROY);
+
+  wl_proxy_destroy((struct wl_proxy*)zwp_idle_inhibitor_v1);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/widget/gtk/wayland/idle-inhibit-unstable-v1-protocol.c b/widget/gtk/wayland/idle-inhibit-unstable-v1-protocol.c
new file mode 100644
index 000000000000..579095e003f5
--- /dev/null
+++ b/widget/gtk/wayland/idle-inhibit-unstable-v1-protocol.c
@@ -0,0 +1,60 @@
+/* Generated by wayland-scanner 1.16.0 */
+
+/*
+ * Copyright © 2015 Samsung Electronics Co., Ltd
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include "wayland-util.h"
+
+#ifndef __has_attribute
+#  define __has_attribute(x) 0 /* Compatibility with non-clang compilers. */
+#endif
+
+#pragma GCC visibility push(default)
+extern const struct wl_interface wl_surface_interface;
+extern const struct wl_interface zwp_idle_inhibitor_v1_interface;
+#pragma GCC visibility pop
+
+static const struct wl_interface* types[] = {
+    &zwp_idle_inhibitor_v1_interface,
+    &wl_surface_interface,
+};
+
+static const struct wl_message zwp_idle_inhibit_manager_v1_requests[] = {
+    {"destroy", "", types + 0},
+    {"create_inhibitor", "no", types + 0},
+};
+
+const struct wl_interface zwp_idle_inhibit_manager_v1_interface = {
+    "zwp_idle_inhibit_manager_v1",        1, 2,
+    zwp_idle_inhibit_manager_v1_requests, 0, NULL,
+};
+
+static const struct wl_message zwp_idle_inhibitor_v1_requests[] = {
+    {"destroy", "", types + 0},
+};
+
+const struct wl_interface zwp_idle_inhibitor_v1_interface = {
+    "zwp_idle_inhibitor_v1", 1, 1, zwp_idle_inhibitor_v1_requests, 0, NULL,
+};
diff --git a/widget/gtk/wayland/moz.build b/widget/gtk/wayland/moz.build
index 2168eae1c673..7e175da0332e 100644
--- a/widget/gtk/wayland/moz.build
+++ b/widget/gtk/wayland/moz.build
@@ -9,13 +9,15 @@ with Files("**"):
 
 SOURCES += [
     'gtk-primary-selection-protocol.c',
+    'idle-inhibit-unstable-v1-protocol.c',
     'linux-dmabuf-unstable-v1-protocol.c'
 ]
 
 EXPORTS.mozilla.widget += [
     'gbm.h',
     'gtk-primary-selection-client-protocol.h',
-    'linux-dmabuf-unstable-v1-client-protocol.h',
+    'idle-inhibit-unstable-v1-client-protocol.h',
+    'linux-dmabuf-unstable-v1-client-protocol.h'
 ]
 
 include('/ipc/chromium/chromium-config.mozbuild')