diff --git a/firefox-wayland.sh.in b/firefox-wayland.sh.in
index 64a1c86..3f91496 100644
--- a/firefox-wayland.sh.in
+++ b/firefox-wayland.sh.in
@@ -3,5 +3,5 @@
 # Run Firefox under Wayland
 #
 
-export GDK_BACKEND=wayland
+export MOZ_ENABLE_WAYLAND=1
 exec /usr/bin/firefox "$@"
diff --git a/firefox-x11.sh.in b/firefox-x11.sh.in
index b8e42a8..9ad78e9 100644
--- a/firefox-x11.sh.in
+++ b/firefox-x11.sh.in
@@ -3,5 +3,4 @@
 # Run Firefox on X11 backend
 #
 
-export GDK_BACKEND=x11
 exec /usr/bin/firefox "$@"
diff --git a/firefox.sh.in b/firefox.sh.in
index 4ad7237..8bace48 100644
--- a/firefox.sh.in
+++ b/firefox.sh.in
@@ -67,15 +67,6 @@ MOZ_PROGRAM="$MOZ_DIST_BIN/$MOZ_FIREFOX_FILE"
 MOZ_LAUNCHER="$MOZ_DIST_BIN/run-mozilla.sh"
 
 ##
-## Enable X11 backend by default?
-##
-if __DEFAULT_X11__; then
-    if ! [ "$GDK_BACKEND" ]; then
-      export GDK_BACKEND=x11
-    fi
-fi
-
-##
 ## Set MOZ_GRE_CONF
 ##
 MOZ_GRE_CONF=/etc/gre.d/gre.conf
diff --git a/firefox.spec b/firefox.spec
index 9df6a1b..b0880bd 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -74,7 +74,7 @@ ExcludeArch: armv7hl
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
 Version:        65.0
-Release:        3%{?pre_tag}%{?dist}
+Release:        4%{?pre_tag}%{?dist}
 URL:            https://www.mozilla.org/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Source0:        https://archive.mozilla.org/pub/firefox/releases/%{version}%{?pre_version}/source/firefox-%{version}%{?pre_version}.source.tar.xz
@@ -332,7 +332,6 @@ This package contains results of tests executed during build.
 
 # Wayland specific upstream patches
 %if 0%{?fedora} > 28
-# TODO
 %patch574 -p1 -b .firefox-pipewire
 %endif
 %patch575 -p1 -b .1522780
@@ -878,6 +877,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Mon Feb 4 2019 Martin Stransky <stransky@redhat.com> - 65.0-4
+- Added fix for mozbz#1522780
+
 * Thu Jan 31 2019 Fedora Release Engineering <releng@fedoraproject.org> - 65.0-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
 
diff --git a/mozilla-1522780.patch b/mozilla-1522780.patch
index 9b771b0..809a598 100644
--- a/mozilla-1522780.patch
+++ b/mozilla-1522780.patch
@@ -1,17 +1,17 @@
-diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
---- a/toolkit/xre/nsAppRunner.cpp
-+++ b/toolkit/xre/nsAppRunner.cpp
-@@ -3622,12 +3622,15 @@
+diff -up firefox-65.0/toolkit/xre/nsAppRunner.cpp.1522780 firefox-65.0/toolkit/xre/nsAppRunner.cpp
+--- firefox-65.0/toolkit/xre/nsAppRunner.cpp.1522780	2019-02-04 14:27:16.704591496 +0100
++++ firefox-65.0/toolkit/xre/nsAppRunner.cpp	2019-02-04 14:30:01.869913509 +0100
+@@ -3839,12 +3839,14 @@ int XREMain::XRE_mainStartup(bool* aExit
  
      bool disableWayland = true;
- #  if defined(MOZ_WAYLAND)
+ #if defined(MOZ_WAYLAND)
 -    // Make X11 backend the default one.
 -    // Enable Wayland backend only when GDK_BACKEND is set and
 -    // Gtk+ >= 3.22 where we can expect recent enough
-+    // Enable Wayland on Gtk+ >= 3.22 where we can expect recent enough
-     // compositor & libwayland interface.
+-    // compositor & libwayland interface.
 -    disableWayland = (PR_GetEnv("GDK_BACKEND") == nullptr) ||
 -                     (gtk_check_version(3, 22, 0) != nullptr);
++    // Enable Wayland on Gtk+ >= 3.22 where we can expect recent enough
 +    disableWayland = (gtk_check_version(3, 22, 0) != nullptr);
 +    if (!disableWayland) {
 +      // Make X11 backend the default one unless MOZ_ENABLE_WAYLAND or
@@ -19,7 +19,6 @@ diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
 +      disableWayland = (PR_GetEnv("GDK_BACKEND") == nullptr) &&
 +                       (PR_GetEnv("MOZ_ENABLE_WAYLAND") == nullptr);
 +    }
- #  endif
+ #endif
      // On Wayland disabled builds read X11 DISPLAY env exclusively
      // and don't care about different displays.
-