Updates openbox: a2e036d Menu: add option to run firefox in private window

diff --git a/modules/openbox b/modules/openbox
index 562353f5a063c41b2706ad4efa19bfe1b02d3115..a2e036d60349b0024f28087fdd5615b239e87528 160000 (submodule)
--- a/modules/openbox
+++ b/modules/openbox
@@ -1 +1 @@
-Subproject commit 562353f5a063c41b2706ad4efa19bfe1b02d3115
+Subproject commit a2e036d60349b0024f28087fdd5615b239e87528