diff --git a/mobile/android/confvars.sh b/mobile/android/confvars.sh
index 7b72cb315516..ecc3f72da3fc 100644
--- a/mobile/android/confvars.sh
+++ b/mobile/android/confvars.sh
@@ -13,9 +13,9 @@ MOZ_BRANDING_DIRECTORY=mobile/android/branding/unofficial
 MOZ_OFFICIAL_BRANDING_DIRECTORY=mobile/android/branding/official
 # MOZ_APP_DISPLAYNAME is set by branding/configure.sh
 
-# We support Android SDK version 14 and up by default.
+# We support Android SDK version 9 and up by default.
 # See the --enable-android-min-sdk and --enable-android-max-sdk arguments in configure.in.
-MOZ_ANDROID_MIN_SDK_VERSION=14
+MOZ_ANDROID_MIN_SDK_VERSION=9
 
 # There are several entry points into the Firefox application.  These are the names of some of the classes that are
 # listed in the Android manifest.  They are specified in here to avoid hard-coding them in source code files.
diff --git a/python/mozbuild/mozbuild/test/backend/common.py b/python/mozbuild/mozbuild/test/backend/common.py
index 46f32945ab4b..6a27a2059070 100644
--- a/python/mozbuild/mozbuild/test/backend/common.py
+++ b/python/mozbuild/mozbuild/test/backend/common.py
@@ -35,7 +35,7 @@ CONFIGS = defaultdict(lambda: {
 }, {
     'android_eclipse': {
         'defines': [
-            ('MOZ_ANDROID_MIN_SDK_VERSION', '14'),
+            ('MOZ_ANDROID_MIN_SDK_VERSION', '9'),
         ],
         'non_global_defines': [],
         'substs': [