diff --git a/firefox.spec b/firefox.spec
index 6e03434..0cc6727 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -163,7 +163,7 @@ ExcludeArch: aarch64
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
 Version:        98.0
-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
@@ -1079,6 +1079,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Wed Mar 30 2022 Jan Grulich <jgrulich@redhat.com> - 98.0-4
+- Wayland screensharing: avoid potential crash when cursor metadata are not set
+
 * Wed Mar 16 2022 Martin Stransky <stransky@redhat.com> - 98.0-3
 - Added a workaround for rhbz#2063961
 
diff --git a/libwebrtc-screen-cast-sync.patch b/libwebrtc-screen-cast-sync.patch
index da909ee..09bfd0f 100644
--- a/libwebrtc-screen-cast-sync.patch
+++ b/libwebrtc-screen-cast-sync.patch
@@ -9344,7 +9344,7 @@ index 0000000..c6ba661
 +    const struct spa_meta_cursor* cursor =
 +        static_cast<struct spa_meta_cursor*>(spa_buffer_find_meta_data(
 +            spa_buffer, SPA_META_Cursor, sizeof(*cursor)));
-+    if (spa_meta_cursor_is_valid(cursor)) {
++    if (cursor && spa_meta_cursor_is_valid(cursor)) {
 +      struct spa_meta_bitmap* bitmap = nullptr;
 +
 +      if (cursor->bitmap_offset)