new file mode 100644
--- /dev/null
+++ b/browser/locales/l10n.ini
@@ -0,0 +1,16 @@
+[general]
+depth = ../..
+all = browser/locales/all-locales
+
+[compare]
+dirs = browser
+     extensions/reporter
+     other-licenses/branding/firefox
+
+[includes]
+# non-central apps might want to use %(topsrcdir)s here, or other vars
+# RFE: that needs to be supported by compare-locales, too, though
+toolkit = toolkit/locales/l10n.ini
+
+[extras]
+dirs = extensions/spellcheck

new file mode 100644
--- /dev/null
+++ b/toolkit/locales/l10n.ini
@@ -0,0 +1,8 @@
+[general]
+depth = ../..
+
+[compare]
+dirs = netwerk
+     dom
+     toolkit
+     security/manager