--- a/taskcluster/ci/l10n/kind.yml
+++ b/taskcluster/ci/l10n/kind.yml
@@ -78,29 +78,33 @@ job-template:
             android-api-16-l10n: android-4-0-armv7-api16/opt
    mozharness:
       config:
          by-build-platform:
             linux-l10n:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/linux32.py
+               - single_locale/tc_common.py
                - single_locale/tc_linux32.py
             linux64-l10n:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/linux64.py
+               - single_locale/tc_common.py
                - single_locale/tc_linux64.py
             macosx64:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/macosx64.py
+               - single_locale/tc_common.py
                - single_locale/tc_macosx64.py
             android-api-16-l10n:
                - single_locale/{project}_android-api-16.py
+               - single_locale/tc_common.py
                - single_locale/tc_android-api-16.py
       # no default, so we fail on new entries
       options:
          - total-chunks=1
          - this-chunk=1
       actions:
          by-build-platform:
             default: [clone-locales list-locales setup repack summary]

--- a/taskcluster/ci/nightly-l10n/kind.yml
+++ b/taskcluster/ci/nightly-l10n/kind.yml
@@ -147,75 +147,86 @@ job-template:
                task-reference: https://queue.taskcluster.net/v1/task/<unsigned-build>/artifacts/public/build/en-US
    mozharness:
       config:
          by-build-platform:
             linux-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/linux32.py
+               - single_locale/tc_common.py
                - single_locale/tc_linux32.py
                - taskcluster_nightly.py
             linux64-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/linux64.py
+               - single_locale/tc_common.py
                - single_locale/tc_linux64.py
                - taskcluster_nightly.py
             macosx64-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/macosx64.py
+               - single_locale/tc_common.py
                - single_locale/tc_macosx64.py
                - taskcluster_nightly.py
             win32-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/win32.py
+               - single_locale/tc_common.py
                - single_locale/tc_win32.py
                - taskcluster_nightly.py
             win64-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/win64.py
+               - single_locale/tc_common.py
                - single_locale/tc_win64.py
                - taskcluster_nightly.py
             linux-devedition-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/linux_devedition.py
+               - single_locale/tc_common.py
                - single_locale/tc_linux32.py
                - taskcluster_nightly.py
             linux64-devedition-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/linux64_devedition.py
+               - single_locale/tc_common.py
                - single_locale/tc_linux64.py
                - taskcluster_nightly.py
             macosx64-devedition-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/macosx64_devedition.py
+               - single_locale/tc_common.py
                - single_locale/tc_macosx64.py
                - taskcluster_nightly.py
             win32-devedition-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/win32_devedition.py
+               - single_locale/tc_common.py
                - single_locale/tc_win32.py
                - taskcluster_nightly.py
             win64-devedition-nightly:
                - single_locale/production.py
                - single_locale/{project}.py
                - single_locale/win64_devedition.py
+               - single_locale/tc_common.py
                - single_locale/tc_win64.py
                - taskcluster_nightly.py
             android-api-16-nightly:
                - taskcluster_nightly.py
                - single_locale/{project}_android-api-16.py
+               - single_locale/tc_common.py
                - single_locale/tc_android-api-16.py
       # no default, so we fail on new entries
       options:
          - revision=$GECKO_HEAD_REV
       actions:
          by-build-platform:
             default: ['clone-locales', 'list-locales', 'setup', 'repack',
                       'submit-to-balrog', 'summary']

--- a/testing/mozharness/configs/single_locale/tc_android-api-16.py
+++ b/testing/mozharness/configs/single_locale/tc_android-api-16.py
@@ -8,18 +8,16 @@ config = {
         "output_dir": "%(abs_work_dir)s/src",
     },
     "tooltool_servers": ['http://relengapi/tooltool/'],
 
     "upload_env": {
         'UPLOAD_HOST': 'localhost',
         'UPLOAD_PATH': '/builds/worker/artifacts/',
     },
-    "mozilla_dir": "src/",
-    "simple_name_move": True,
     'secret_files': [
         {'filename': '/builds/gapi.data',
          'secret_name': 'project/releng/gecko/build/level-%(scm-level)s/gapi.data',
          'min_scm_level': 1},
         {'filename': '/builds/mozilla-fennec-geoloc-api.key',
          'secret_name': 'project/releng/gecko/build/level-%(scm-level)s/mozilla-fennec-geoloc-api.key',
          'min_scm_level': 2, 'default': 'try-build-has-no-secrets'},
         {'filename': '/builds/adjust-sdk.token',

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/configs/single_locale/tc_common.py
@@ -0,0 +1,8 @@
+config = {
+    "mozilla_dir": "src/",
+    "simple_name_move": True,
+    "update_gecko_source_to_enUS": False,
+
+    # Override the buildbot path to not read it
+    "buildbot_json_path": None,
+}

--- a/testing/mozharness/configs/single_locale/tc_linux32.py
+++ b/testing/mozharness/configs/single_locale/tc_linux32.py
@@ -14,11 +14,9 @@ config = {
         "L10NBASEDIR": "../../l10n",
         "MOZ_MAKE_COMPLETE_MAR": "1",
         'TOOLTOOL_CACHE': os.environ.get('TOOLTOOL_CACHE'),
     },
     "upload_env": {
         'UPLOAD_HOST': 'localhost',
         'UPLOAD_PATH': '/builds/worker/artifacts/',
     },
-    "mozilla_dir": "src/",
-    "simple_name_move": True,
 }

--- a/testing/mozharness/configs/single_locale/tc_linux64.py
+++ b/testing/mozharness/configs/single_locale/tc_linux64.py
@@ -14,11 +14,9 @@ config = {
         "L10NBASEDIR": "../../l10n",
         "MOZ_MAKE_COMPLETE_MAR": "1",
         'TOOLTOOL_CACHE': os.environ.get('TOOLTOOL_CACHE'),
     },
     "upload_env": {
         'UPLOAD_HOST': 'localhost',
         'UPLOAD_PATH': '/builds/worker/artifacts/',
     },
-    "mozilla_dir": "src/",
-    "simple_name_move": True,
 }

--- a/testing/mozharness/configs/single_locale/tc_macosx64.py
+++ b/testing/mozharness/configs/single_locale/tc_macosx64.py
@@ -16,12 +16,10 @@ config = {
         'TOOLTOOL_CACHE': os.environ.get('TOOLTOOL_CACHE'),
     },
     "upload_env": {
         'UPLOAD_HOST': 'localhost',
         'UPLOAD_PATH': '/builds/worker/artifacts/',
     },
 
     "tooltool_url": 'http://relengapi/tooltool/',
-    "mozilla_dir": "src/",
-    "simple_name_move": True,
 }
 

--- a/testing/mozharness/configs/single_locale/tc_win32.py
+++ b/testing/mozharness/configs/single_locale/tc_win32.py
@@ -24,15 +24,9 @@ config = {
     },
     "upload_env": {
         'UPLOAD_HOST': 'localhost',
         'UPLOAD_PATH': os.path.join(os.getcwd(), 'public', 'build'),
     },
 
     "tooltool_url": 'http://relengapi/tooltool/',
     'tooltool_manifest_src': "browser/config/tooltool-manifests/win32/releng.manifest",
-    "mozilla_dir": "src/",
-    "simple_name_move": True,
-    "update_gecko_source_to_enUS": False,
-
-    # Override the buildbot path to not read it
-    "buildbot_json_path": None,
 }

--- a/testing/mozharness/configs/single_locale/tc_win64.py
+++ b/testing/mozharness/configs/single_locale/tc_win64.py
@@ -24,16 +24,10 @@ config = {
     },
     "upload_env": {
         'UPLOAD_HOST': 'localhost',
         'UPLOAD_PATH': os.path.join(os.getcwd(), 'public', 'build'),
     },
 
     "tooltool_url": 'http://relengapi/tooltool/',
     'tooltool_manifest_src': "browser/config/tooltool-manifests/win64/releng.manifest",
-    "mozilla_dir": "src/",
-    "simple_name_move": True,
-    "update_gecko_source_to_enUS": False,
-
-    # Override the buildbot path to not read it
-    "buildbot_json_path": None,
 }