diff --git a/browser/confvars.sh b/browser/confvars.sh
index 13ca08894eb..2e6607e7c70 100755
--- a/browser/confvars.sh
+++ b/browser/confvars.sh
@@ -59,6 +59,7 @@ MOZ_EXTENSIONS_DEFAULT=" gnomevfs"
 MOZ_BRANDING_DIRECTORY=browser/branding/nightly
 MOZ_OFFICIAL_BRANDING_DIRECTORY=browser/branding/official
 MOZ_APP_ID={ec8030f7-c20a-464f-9b0e-13a3a9e97384}
+MAR_CHANNEL_ID=firefox-mozilla-central
 MOZ_PROFILE_MIGRATOR=1
 MOZ_EXTENSION_MANAGER=1
 MOZ_APP_STATIC_INI=1
diff --git a/browser/installer/package-manifest.in b/browser/installer/package-manifest.in
index 4bde9036621..6f04b3a9245 100644
--- a/browser/installer/package-manifest.in
+++ b/browser/installer/package-manifest.in
@@ -97,6 +97,7 @@
 @BINPATH@/@MOZ_APP_NAME@
 #endif
 @BINPATH@/application.ini
+@BINPATH@/update-settings.ini
 @BINPATH@/platform.ini
 #ifndef XP_OS2
 @BINPATH@/@DLL_PREFIX@mozsqlite3@DLL_SUFFIX@
diff --git a/build/Makefile.in b/build/Makefile.in
index f50833dd8d3..9c4d3acde4f 100644
--- a/build/Makefile.in
+++ b/build/Makefile.in
@@ -68,6 +68,10 @@ endif
 ifdef MOZ_APP_BASENAME
 DIST_FILES = application.ini
 
+ifneq (android,$(MOZ_WIDGET_TOOLKIT))
+DIST_FILES += update-settings.ini
+endif
+
 ifdef LIBXUL_SDK
 GRE_MILESTONE = $(shell $(PYTHON) $(topsrcdir)/config/printconfigsetting.py $(LIBXUL_DIST)/bin/platform.ini Build Milestone)
 APP_INI_DEPS = $(LIBXUL_DIST)/bin/platform.ini
@@ -99,6 +103,7 @@ DEFINES += \
   -DMOZ_APP_BASENAME="$(MOZ_APP_BASENAME)" \
   -DMOZ_APP_VENDOR="$(MOZ_APP_VENDOR)" \
   -DMOZ_APP_ID="$(MOZ_APP_ID)" \
+  -DMAR_CHANNEL_ID="$(MAR_CHANNEL_ID)" \
   $(NULL)
 
 ifdef MOZ_APP_PROFILE
@@ -153,6 +158,12 @@ leaktest.py: leaktest.py.in
 	chmod +x $@
 GARBAGE += leaktest.py
 
+ifneq (android,$(MOZ_WIDGET_TOOLKIT))
+update-settings.ini: update-settings.ini.in $(APP_INI_DEPS)
+	$(PYTHON) $(topsrcdir)/config/Preprocessor.py $(DEFINES) $< > $@
+GARBAGE += update-settings.ini
+endif
+
 ifdef MOZ_APP_BASENAME
 application.ini: application.ini.in $(APP_INI_DEPS)
 	$(PYTHON) $(topsrcdir)/config/Preprocessor.py $(DEFINES) $< > $@
diff --git a/build/update-settings.ini.in b/build/update-settings.ini.in
new file mode 100644
index 00000000000..bd98011499b
--- /dev/null
+++ b/build/update-settings.ini.in
@@ -0,0 +1,44 @@
+#if 0
+; ***** BEGIN LICENSE BLOCK *****
+; Version: MPL 1.1/GPL 2.0/LGPL 2.1
+;
+; The contents of this file are subject to the Mozilla Public License Version
+; 1.1 (the "License"); you may not use this file except in compliance with
+; the License. You may obtain a copy of the License at
+; http://www.mozilla.org/MPL/
+;
+; Software distributed under the License is distributed on an "AS IS" basis,
+; WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+; for the specific language governing rights and limitations under the
+; License.
+;
+; The Original Code is MAR channel config.
+;
+; The Initial Developer of the Original Code is
+; Mozilla Foundation.
+; Portions created by the Initial Developer are Copyright (C) 2011
+; the Initial Developer. All Rights Reserved.
+;
+; Contributor(s):
+;   Brian R. Bondy <netzen@gmail.com>
+;
+; Alternatively, the contents of this file may be used under the terms of
+; either the GNU General Public License Version 2 or later (the "GPL"), or
+; the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+; in which case the provisions of the GPL or the LGPL are applicable instead
+; of those above. If you wish to allow use of your version of this file only
+; under the terms of either the GPL or the LGPL, and not to allow others to
+; use your version of this file under the terms of the MPL, indicate your
+; decision by deleting the provisions above and replace them with the notice
+; and other provisions required by the GPL or the LGPL. If you do not delete
+; the provisions above, a recipient may use your version of this file under
+; the terms of any one of the MPL, the GPL or the LGPL.
+;
+; ***** END LICENSE BLOCK *****
+#endif
+; If you modify this file updates may fail.
+; Do not modify this file.
+
+#filter substitution
+[Settings]
+MAR_CHANNEL_ID=@MAR_CHANNEL_ID@
diff --git a/config/autoconf.mk.in b/config/autoconf.mk.in
index 6a778b922ab..faf328de53e 100644
--- a/config/autoconf.mk.in
+++ b/config/autoconf.mk.in
@@ -53,6 +53,7 @@ MOZ_APP_BASENAME = @MOZ_APP_BASENAME@
 MOZ_APP_VENDOR = @MOZ_APP_VENDOR@
 MOZ_APP_PROFILE = @MOZ_APP_PROFILE@
 MOZ_APP_ID = @MOZ_APP_ID@
+MAR_CHANNEL_ID = @MAR_CHANNEL_ID@
 MOZ_PROFILE_MIGRATOR = @MOZ_PROFILE_MIGRATOR@
 MOZ_EXTENSION_MANAGER = @MOZ_EXTENSION_MANAGER@
 MOZ_APP_UA_NAME = @MOZ_APP_UA_NAME@
diff --git a/configure.in b/configure.in
index d626db81811..b0d1d6d984f 100644
--- a/configure.in
+++ b/configure.in
@@ -8694,6 +8694,7 @@ AC_SUBST(MOZ_APP_BASENAME)
 AC_SUBST(MOZ_APP_VENDOR)
 AC_SUBST(MOZ_APP_PROFILE)
 AC_SUBST(MOZ_APP_ID)
+AC_SUBST(MAR_CHANNEL_ID)
 AC_SUBST(MOZ_PROFILE_MIGRATOR)
 AC_SUBST(MOZ_EXTENSION_MANAGER)
 AC_DEFINE_UNQUOTED(MOZ_APP_UA_NAME, "$MOZ_APP_UA_NAME")