Updates utils-x11: 4979e0e Adds firefox-dev

diff --git a/utils-x11 b/utils-x11
index 4413be538e96832b1748f733929590b73ee721de..4979e0e692f6bb14fb226af415b004bc60f959ba 160000 (submodule)
--- a/utils-x11
+++ b/utils-x11
@@ -1 +1 @@
-Subproject commit 4413be538e96832b1748f733929590b73ee721de
+Subproject commit 4979e0e692f6bb14fb226af415b004bc60f959ba