diff --git a/b2g/config/mozconfigs/common.override b/b2g/config/mozconfigs/common.override
index b94b773c00323..abe73b4605d07 100644
--- a/b2g/config/mozconfigs/common.override
+++ b/b2g/config/mozconfigs/common.override
@@ -5,3 +5,4 @@
 # This file is included at the bottom of all b2g mozconfigs
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/b2g/config/mozconfigs/ics_armv7a_gecko/debug b/b2g/config/mozconfigs/ics_armv7a_gecko/debug
index 494df42c02ba7..1cacb8a7551d7 100644
--- a/b2g/config/mozconfigs/ics_armv7a_gecko/debug
+++ b/b2g/config/mozconfigs/ics_armv7a_gecko/debug
@@ -12,7 +12,6 @@ export GONK_PRODUCT=generic
 ac_add_options --with-gonk-toolchain-prefix="$topsrcdir/gonk-toolchain/prebuilt/$TOOLCHAIN_HOST/toolchain/arm-linux-androideabi-4.4.x/bin/arm-linux-androideabi-"
 ac_add_options --enable-debug-symbols
 ac_add_options --enable-debug
-#. "$topsrcdir/build/mozconfig.cache"
 ENABLE_MARIONETTE=1
 
 # Enable dump() from JS.
diff --git a/b2g/config/mozconfigs/ics_armv7a_gecko/nightly b/b2g/config/mozconfigs/ics_armv7a_gecko/nightly
index ece18271d8ae8..c2f1ae0fa99af 100644
--- a/b2g/config/mozconfigs/ics_armv7a_gecko/nightly
+++ b/b2g/config/mozconfigs/ics_armv7a_gecko/nightly
@@ -13,7 +13,6 @@ export GONK_PRODUCT=generic
 ac_add_options --with-gonk-toolchain-prefix="$topsrcdir/gonk-toolchain/prebuilt/$TOOLCHAIN_HOST/toolchain/arm-linux-androideabi-4.4.x/bin/arm-linux-androideabi-"
 ac_add_options --enable-debug-symbols
 # ac_add_options --enable-profiling
-#. "$topsrcdir/build/mozconfig.cache"
 ENABLE_MARIONETTE=1
 
 # Enable dump() from JS.
diff --git a/b2g/config/mozconfigs/linux32_gecko/debug b/b2g/config/mozconfigs/linux32_gecko/debug
index 34458055ba58e..917f4a5f09a01 100644
--- a/b2g/config/mozconfigs/linux32_gecko/debug
+++ b/b2g/config/mozconfigs/linux32_gecko/debug
@@ -24,7 +24,6 @@ ac_add_options --enable-warnings-as-errors
 
 # Use sccache
 no_sccache=
-. "$topsrcdir/build/mozconfig.cache"
 
 #B2G options
 ac_add_options --enable-application=b2g
diff --git a/b2g/config/mozconfigs/linux32_gecko/nightly b/b2g/config/mozconfigs/linux32_gecko/nightly
index a6ef29b59769d..8f41f9609f51c 100644
--- a/b2g/config/mozconfigs/linux32_gecko/nightly
+++ b/b2g/config/mozconfigs/linux32_gecko/nightly
@@ -24,7 +24,6 @@ ac_add_options --enable-warnings-as-errors
 
 # Use sccache
 no_sccache=
-. "$topsrcdir/build/mozconfig.cache"
 
 #B2G options
 ac_add_options --enable-application=b2g
diff --git a/b2g/config/mozconfigs/linux64_gecko/debug b/b2g/config/mozconfigs/linux64_gecko/debug
index 331d04a93411c..4fa78e29e11d6 100644
--- a/b2g/config/mozconfigs/linux64_gecko/debug
+++ b/b2g/config/mozconfigs/linux64_gecko/debug
@@ -24,7 +24,6 @@ ac_add_options --enable-warnings-as-errors
 
 # Use sccache
 no_sccache=
-. "$topsrcdir/build/mozconfig.cache"
 
 #B2G options
 ac_add_options --enable-application=b2g
diff --git a/b2g/config/mozconfigs/linux64_gecko/nightly b/b2g/config/mozconfigs/linux64_gecko/nightly
index e373d4ee23a6a..25fd0e7568905 100644
--- a/b2g/config/mozconfigs/linux64_gecko/nightly
+++ b/b2g/config/mozconfigs/linux64_gecko/nightly
@@ -24,7 +24,6 @@ ac_add_options --enable-warnings-as-errors
 
 # Use sccache
 no_sccache=
-. "$topsrcdir/build/mozconfig.cache"
 
 #B2G options
 ac_add_options --enable-application=b2g
diff --git a/b2g/config/tooltool-manifests/win32/releng.manifest b/b2g/config/tooltool-manifests/win32/releng.manifest
index b0768e4bd5565..a9c350a226abe 100644
--- a/b2g/config/tooltool-manifests/win32/releng.manifest
+++ b/b2g/config/tooltool-manifests/win32/releng.manifest
@@ -11,5 +11,12 @@
 "algorithm": "sha512",
 "filename": "moztt.tar.bz2",
 "unpack": "True"
+},
+{
+"size": 167175,
+"digest": "0b71a936edf5bd70cf274aaa5d7abc8f77fe8e7b5593a208f805cc9436fac646b9c4f0b43c2b10de63ff3da671497d35536077ecbc72dba7f8159a38b580f831",
+"algorithm": "sha512",
+"filename": "sccache.tar.bz2",
+"unpack": "True"
 }
 ]
diff --git a/b2g/dev/config/mozconfigs/macosx64/mulet b/b2g/dev/config/mozconfigs/macosx64/mulet
index 2d46d259cea94..93bbf41eebd20 100644
--- a/b2g/dev/config/mozconfigs/macosx64/mulet
+++ b/b2g/dev/config/mozconfigs/macosx64/mulet
@@ -27,3 +27,4 @@ export MOZ_PACKAGE_JSSHELL=1
 MOZTTDIR=$topsrcdir/moztt
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/linux32/debug b/browser/config/mozconfigs/linux32/debug
index 97d6210b23696..a8f90546f3083 100644
--- a/browser/config/mozconfigs/linux32/debug
+++ b/browser/config/mozconfigs/linux32/debug
@@ -11,7 +11,6 @@ MOZ_AUTOMATION_L10N_CHECK=0
 export MOZILLA_OFFICIAL=1
 
 #Use ccache
-. "$topsrcdir/build/mozconfig.cache"
 
 # Treat warnings as errors in directories with FAIL_ON_WARNINGS.
 ac_add_options --enable-warnings-as-errors
@@ -22,3 +21,4 @@ export MOZ_PACKAGE_JSSHELL=1
 ac_add_options --with-branding=browser/branding/nightly
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/linux32/nightly b/browser/config/mozconfigs/linux32/nightly
index b6dfacff3d0d0..05ab10e63b3c3 100644
--- a/browser/config/mozconfigs/linux32/nightly
+++ b/browser/config/mozconfigs/linux32/nightly
@@ -10,7 +10,5 @@ STRIP_FLAGS="--strip-debug"
 
 ac_add_options --with-branding=browser/branding/nightly
 
-# Use ccache
-. "$topsrcdir/build/mozconfig.cache"
-
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/linux64/debug b/browser/config/mozconfigs/linux64/debug
index 8f1f458ff219e..ef5aa0dc5490f 100644
--- a/browser/config/mozconfigs/linux64/debug
+++ b/browser/config/mozconfigs/linux64/debug
@@ -10,9 +10,6 @@ MOZ_AUTOMATION_L10N_CHECK=0
 # Needed to enable breakpad in application.ini
 export MOZILLA_OFFICIAL=1
 
-# Use ccache
-. "$topsrcdir/build/mozconfig.cache"
-
 # Treat warnings as errors in directories with FAIL_ON_WARNINGS.
 ac_add_options --enable-warnings-as-errors
 
@@ -22,3 +19,4 @@ export MOZ_PACKAGE_JSSHELL=1
 ac_add_options --with-branding=browser/branding/nightly
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/linux64/nightly b/browser/config/mozconfigs/linux64/nightly
index b96a861348592..b6b9c998527ef 100644
--- a/browser/config/mozconfigs/linux64/nightly
+++ b/browser/config/mozconfigs/linux64/nightly
@@ -10,7 +10,5 @@ STRIP_FLAGS="--strip-debug"
 
 ac_add_options --with-branding=browser/branding/nightly
 
-# Use ccache
-. "$topsrcdir/build/mozconfig.cache"
-
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/macosx-universal/beta b/browser/config/mozconfigs/macosx-universal/beta
index cc2f44d0ef03d..80c77b484d03d 100644
--- a/browser/config/mozconfigs/macosx-universal/beta
+++ b/browser/config/mozconfigs/macosx-universal/beta
@@ -3,3 +3,4 @@
 ac_add_options --enable-official-branding
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/macosx-universal/l10n-mozconfig b/browser/config/mozconfigs/macosx-universal/l10n-mozconfig
index dd400d2b64f70..a9ff62c8eed3b 100644
--- a/browser/config/mozconfigs/macosx-universal/l10n-mozconfig
+++ b/browser/config/mozconfigs/macosx-universal/l10n-mozconfig
@@ -10,8 +10,7 @@ if test "${MOZ_UPDATE_CHANNEL}" = "nightly"; then
 ac_add_options --with-macbundlename-prefix=Firefox
 fi
 
-. "$topsrcdir/build/mozconfig.cache"
-
 export MOZILLA_OFFICIAL=1
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/macosx-universal/nightly b/browser/config/mozconfigs/macosx-universal/nightly
index 5b4b00f351505..19cf57cce9176 100644
--- a/browser/config/mozconfigs/macosx-universal/nightly
+++ b/browser/config/mozconfigs/macosx-universal/nightly
@@ -13,3 +13,4 @@ fi
 ac_add_options --with-branding=browser/branding/nightly
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/macosx-universal/release b/browser/config/mozconfigs/macosx-universal/release
index ab8a4698c9605..d5e493341ac6d 100644
--- a/browser/config/mozconfigs/macosx-universal/release
+++ b/browser/config/mozconfigs/macosx-universal/release
@@ -9,3 +9,4 @@ ac_add_options --enable-official-branding
 export BUILDING_RELEASE=1
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/macosx64/debug b/browser/config/mozconfigs/macosx64/debug
index 148c1909913c6..bf387ff075556 100644
--- a/browser/config/mozconfigs/macosx64/debug
+++ b/browser/config/mozconfigs/macosx64/debug
@@ -21,3 +21,4 @@ export MOZ_PACKAGE_JSSHELL=1
 ac_add_options --with-branding=browser/branding/nightly
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/macosx64/debug-static-analysis b/browser/config/mozconfigs/macosx64/debug-static-analysis
index d451e78c99a08..d55de95590845 100644
--- a/browser/config/mozconfigs/macosx64/debug-static-analysis
+++ b/browser/config/mozconfigs/macosx64/debug-static-analysis
@@ -13,3 +13,4 @@ ac_add_options --enable-warnings-as-errors
 ac_add_options --enable-clang-plugin
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/macosx64/l10n-mozconfig b/browser/config/mozconfigs/macosx64/l10n-mozconfig
index 7c15cb01997f4..952ab3da3dcd7 100644
--- a/browser/config/mozconfigs/macosx64/l10n-mozconfig
+++ b/browser/config/mozconfigs/macosx64/l10n-mozconfig
@@ -4,6 +4,6 @@ ac_add_options --with-l10n-base=../../l10n
 ac_add_options --enable-update-channel=${MOZ_UPDATE_CHANNEL}
 ac_add_options --enable-update-packaging
 ac_add_options --with-branding=browser/branding/nightly
-. "$topsrcdir/build/mozconfig.cache"
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/macosx64/nightly b/browser/config/mozconfigs/macosx64/nightly
index 087a17d774023..ceb1ba33f2291 100644
--- a/browser/config/mozconfigs/macosx64/nightly
+++ b/browser/config/mozconfigs/macosx64/nightly
@@ -19,3 +19,4 @@ export MOZ_PACKAGE_JSSHELL=1
 ac_add_options --with-branding=browser/branding/nightly
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/win32/debug b/browser/config/mozconfigs/win32/debug
index 5eabdd8952a63..118cb5256c096 100644
--- a/browser/config/mozconfigs/win32/debug
+++ b/browser/config/mozconfigs/win32/debug
@@ -28,6 +28,5 @@ export MOZ_PACKAGE_JSSHELL=1
 
 ac_add_options --with-branding=browser/branding/nightly
 
-. "$topsrcdir/build/mozconfig.cache"
-
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/win32/nightly b/browser/config/mozconfigs/win32/nightly
index f878ff7ffb79a..de440c2c7d5dc 100644
--- a/browser/config/mozconfigs/win32/nightly
+++ b/browser/config/mozconfigs/win32/nightly
@@ -6,6 +6,5 @@ ac_add_options --enable-profiling
 
 ac_add_options --with-branding=browser/branding/nightly
 
-. "$topsrcdir/build/mozconfig.cache"
-
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/win64/debug b/browser/config/mozconfigs/win64/debug
index 40905ae9c9e9b..b22f1891011c2 100644
--- a/browser/config/mozconfigs/win64/debug
+++ b/browser/config/mozconfigs/win64/debug
@@ -30,6 +30,5 @@ ac_add_options --with-branding=browser/branding/nightly
 
 . $topsrcdir/build/win64/mozconfig.vs2013
 
-. "$topsrcdir/build/mozconfig.cache"
-
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/browser/config/mozconfigs/win64/nightly b/browser/config/mozconfigs/win64/nightly
index f187fd11c8a05..76054cf5e7da3 100644
--- a/browser/config/mozconfigs/win64/nightly
+++ b/browser/config/mozconfigs/win64/nightly
@@ -7,6 +7,5 @@ ac_add_options --enable-profiling
 
 ac_add_options --with-branding=browser/branding/nightly
 
-. "$topsrcdir/build/mozconfig.cache"
-
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/build/macosx/mozconfig.common b/build/macosx/mozconfig.common
index 8bfd65b5d53b1..a36cf895d431c 100644
--- a/build/macosx/mozconfig.common
+++ b/build/macosx/mozconfig.common
@@ -34,6 +34,4 @@ if [ -z "$CXX" ]; then
     export CXX=clang++
 fi
 
-. "$topsrcdir/build/mozconfig.cache"
-
 export SOCORRO_SYMBOL_UPLOAD_TOKEN_FILE=/builds/crash-stats-api.token
diff --git a/build/mozconfig.cache b/build/mozconfig.cache
index c003f5f6ea4dc..b965ee0712e9d 100644
--- a/build/mozconfig.cache
+++ b/build/mozconfig.cache
@@ -51,6 +51,10 @@ if test -z "$bucket"; then
         ac_add_options --with-ccache
     esac
 else
+    if ! test -e $topsrcdir/sccache/sccache.py; then
+        echo "Sccache missing in the tooltool manifest" >&2
+        exit 1
+    fi
     mk_add_options "export SCCACHE_BUCKET=$bucket"
     case "$master" in
     *use1.mozilla.com*|*usw2.mozilla.com*)
diff --git a/mobile/android/config/mozconfigs/android-api-11/debug b/mobile/android/config/mozconfigs/android-api-11/debug
index 8660f0f1e643f..48fb15087a0a4 100644
--- a/mobile/android/config/mozconfigs/android-api-11/debug
+++ b/mobile/android/config/mozconfigs/android-api-11/debug
@@ -16,4 +16,3 @@ ac_add_options --with-branding=mobile/android/branding/nightly
 ac_add_options --enable-warnings-as-errors
 
 . "$topsrcdir/mobile/android/config/mozconfigs/common.override"
-
diff --git a/mobile/android/config/mozconfigs/common.override b/mobile/android/config/mozconfigs/common.override
index 97b47ae0aa490..08b20b56b5ef2 100644
--- a/mobile/android/config/mozconfigs/common.override
+++ b/mobile/android/config/mozconfigs/common.override
@@ -5,3 +5,4 @@
 # This file is included at the bottom of all native android mozconfigs
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/xulrunner/config/mozconfigs/common.override b/xulrunner/config/mozconfigs/common.override
index 2663d3baf58be..8d719a5b5ec36 100644
--- a/xulrunner/config/mozconfigs/common.override
+++ b/xulrunner/config/mozconfigs/common.override
@@ -5,3 +5,4 @@
 # This file is included at the bottom of all xulrunner mozconfigs
 
 . "$topsrcdir/build/mozconfig.common.override"
+. "$topsrcdir/build/mozconfig.cache"
diff --git a/xulrunner/config/mozconfigs/linux32/xulrunner b/xulrunner/config/mozconfigs/linux32/xulrunner
index 6f4c10e604a8b..171674f8c814d 100644
--- a/xulrunner/config/mozconfigs/linux32/xulrunner
+++ b/xulrunner/config/mozconfigs/linux32/xulrunner
@@ -6,7 +6,4 @@ ac_add_options --disable-tests
 
 . $topsrcdir/build/unix/mozconfig.linux32
 
-#Use ccache
-. "$topsrcdir/build/mozconfig.cache"
-
 . "$topsrcdir/xulrunner/config/mozconfigs/common.override"
diff --git a/xulrunner/config/mozconfigs/linux32/xulrunner-qt b/xulrunner/config/mozconfigs/linux32/xulrunner-qt
index 209603ebf2e26..54e4ecb8f5f1f 100644
--- a/xulrunner/config/mozconfigs/linux32/xulrunner-qt
+++ b/xulrunner/config/mozconfigs/linux32/xulrunner-qt
@@ -6,9 +6,6 @@ ac_add_options --disable-tests
 
 . $topsrcdir/build/unix/mozconfig.linux32
 
-#Use ccache
-. "$topsrcdir/build/mozconfig.cache"
-
 # QT Options
 export PKG_CONFIG_PATH=/tools/qt-4.6.3/qt/lib/pkgconfig
 ac_add_options --with-qtdir=/tools/qt-4.6.3/qt
diff --git a/xulrunner/config/mozconfigs/linux64/xulrunner b/xulrunner/config/mozconfigs/linux64/xulrunner
index a0cdabde99dc7..c18a12f67934e 100644
--- a/xulrunner/config/mozconfigs/linux64/xulrunner
+++ b/xulrunner/config/mozconfigs/linux64/xulrunner
@@ -6,7 +6,4 @@ ac_add_options --disable-tests
 
 . $topsrcdir/build/unix/mozconfig.linux
 
-#Use ccache
-. "$topsrcdir/build/mozconfig.cache"
-
 . "$topsrcdir/xulrunner/config/mozconfigs/common.override"