diff --git a/widget/gtk/nsAppShell.cpp b/widget/gtk/nsAppShell.cpp
index 117c1d6ae07c9b2539005dd05edf2c622985ac2f..126748a8fa13f3f9c163aca06a1d65f972b91f8f 100644
--- a/widget/gtk/nsAppShell.cpp
+++ b/widget/gtk/nsAppShell.cpp
@@ -488,7 +488,8 @@ nsresult nsAppShell::Init() {
     gchar* name = gdk_pixbuf_format_get_name(format);
     if (strcmp(name, "jpeg") && strcmp(name, "png") && strcmp(name, "gif") &&
         strcmp(name, "bmp") && strcmp(name, "ico") && strcmp(name, "xpm") &&
-        strcmp(name, "svg") && strcmp(name, "webp") && strcmp(name, "avif")) {
+        strcmp(name, "svg") && strcmp(name, "webp") && strcmp(name, "avif") &&
+        strcmp(name, "jxl")) {
       gdk_pixbuf_format_set_disabled(format, TRUE);
     }
     g_free(name);