Bug 1186522 - force per checkin and release desktop firefox builds to require signed add-ons on beta 47 r=rail DONTBUILD

testing/mozharness/configs/merge_day/aurora_to_beta.py

@@ -48,6 +48,13 @@ config = {
         ("browser/config/mozconfigs/whitelist",
          "ac_add_options --with-branding=browser/branding/aurora",
          "ac_add_options --with-branding=browser/branding/nightly"),
+    ] + [
+        ("build/mozconfig.common",
+         "MOZ_REQUIRE_SIGNING=${MOZ_REQUIRE_SIGNING-0}",
+         "MOZ_REQUIRE_SIGNING=${MOZ_REQUIRE_SIGNING-1}"),
+        ("build/mozconfig.common",
+         "# Disable enforcing that add-ons are signed by the trusted root",
+         "# Enable enforcing that add-ons are signed by the trusted root")
     ],
 
     # Disallow sharing, since we want pristine .hg directories.