[Pale-Moon] Add a configure option for Phoenix Extensions Dual-GUID System and set default off in confvars

application/palemoon/configure.in

@@ -7,13 +7,26 @@ dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
 dnl Things we need to carry from confvars.sh
 AC_DEFINE(MOZ_PHOENIX)
 AC_SUBST(MOZ_PHOENIX)
+
 AC_DEFINE(MC_PALEMOON)
 AC_SUBST(MC_PALEMOON)
-AC_DEFINE(MOZ_PHOENIX_EXTENSIONS)
-AC_SUBST(MOZ_PHOENIX_EXTENSIONS)
 
 dnl Optional parts of the build.
 
+dnl ========================================================
+dnl = Enable Phoenix Extension Support
+dnl ========================================================
+MOZ_ARG_ENABLE_BOOL(phoenix-extensions,
+[  --enable-phoenix-extensions           Enable Phoenix Extension Support],
+    MOZ_PHOENIX_EXTENSIONS=1,
+    MOZ_PHOENIX_EXTENSIONS=)
+
+if test -n "$MOZ_PHOENIX_EXTENSIONS"; then
+    AC_DEFINE(MOZ_PHOENIX_EXTENSIONS)
+fi
+
+AC_SUBST(MOZ_PHOENIX_EXTENSIONS)
+
 dnl ========================================================
 dnl = Disable Sync
 dnl ========================================================

application/palemoon/confvars.sh

@@ -65,7 +65,7 @@ MOZ_DEVTOOLS=1
 # Allows installation of Firefox GUID targeted extensions despite having
 # a different Application ID
 # On UXP this is a possible feature only for the Tycho Add-ons Manager
-MOZ_PHOENIX_EXTENSIONS=1
+MOZ_PHOENIX_EXTENSIONS=
 
 # Platform Feature: Sync Service
 MOZ_SERVICES_COMMON=1