--- a/mozilla-tests/b2g_config.py
+++ b/mozilla-tests/b2g_config.py
@@ -2307,17 +2307,17 @@ BRANCHES['mozilla-central']['branch_name
 BRANCHES['mozilla-inbound']['repo_path'] = "integration/mozilla-inbound"
 BRANCHES['b2g-inbound']['branch_name'] = "B2g-Inbound"
 BRANCHES['b2g-inbound']['repo_path'] = "integration/b2g-inbound"
 BRANCHES['try']['pgo_strategy'] = "try"
 BRANCHES['try']['enable_try'] = True
 BRANCHES['gaia-try']['repo_path'] = "integration/gaia-try"
 
 # Enable mozharness pinning
-for branch in ('ash', 'fx-team', 'try',):
+for branch in ('ash', 'fx-team', 'mozilla-central', 'try',):
     BRANCHES[branch]['script_repo_manifest'] = \
         "https://hg.mozilla.org/%(repo_path)s/raw-file/%(revision)s/" + \
             "testing/mozharness/mozharness.json"
 
 def exclude_suites(slave_platform, branch, suites_to_be_excluded, from_opt_unittests, from_debug_unittests):
     #slave_platform is a tuple, e.g.:
     #('linux64_gecko', 'ubuntu64_vm-b2gdt')
     if nested_haskey(BRANCHES[branch]['platforms'], slave_platform[0], slave_platform[1]):

--- a/mozilla-tests/config.py
+++ b/mozilla-tests/config.py
@@ -1902,17 +1902,17 @@ BRANCHES['mozilla-inbound']['platforms']
 BRANCHES['mozilla-inbound']['platforms']['macosx64']['mountainlion']['debug_unittest_skipcount'] = 3
 BRANCHES['mozilla-inbound']['platforms']['macosx64']['mountainlion']['debug_unittest_skiptimeout'] = 1800
 BRANCHES['mozilla-inbound']['platforms']['macosx64']['yosemite']['debug_unittest_skipcount'] = 2
 BRANCHES['mozilla-inbound']['platforms']['macosx64']['yosemite']['debug_unittest_skiptimeout'] = 1800
 BRANCHES['mozilla-inbound']['platforms']['linux']['ubuntu32_vm']['debug_unittest_skipcount'] = 2
 BRANCHES['mozilla-inbound']['platforms']['linux']['ubuntu32_vm']['debug_unittest_skiptimeout'] = 1800
 
 # Enable mozharness pinning
-for branch in ('ash', 'fx-team', 'try',):
+for branch in ('ash', 'fx-team', 'mozilla-central', 'try',):
     BRANCHES[branch]['script_repo_manifest'] = \
         "https://hg.mozilla.org/%(repo_path)s/raw-file/%(revision)s/" + \
             "testing/mozharness/mozharness.json"
 
 # Filter the tests that are enabled on holly for bug 985718.
 for platform in BRANCHES['holly']['platforms'].keys():
     if platform not in PLATFORMS:
         continue

--- a/mozilla-tests/mobile_config.py
+++ b/mozilla-tests/mobile_config.py
@@ -1711,17 +1711,17 @@ BRANCHES['try']['platforms']['android-ap
 BRANCHES['try']['pgo_strategy'] = 'try'
 BRANCHES['try']['pgo_platforms'] = []
 BRANCHES['try']['enable_try'] = True
 
 # Until we green out these Android x86 tests
 BRANCHES['cedar']['platforms']['android-x86']['ubuntu64_hw']['opt_unittest_suites'] += ANDROID_X86_NOT_GREEN_DICT[:]
 
 # Enable mozharness pinning
-for branch in ('ash', 'fx-team', 'try',):
+for branch in ('ash', 'fx-team', 'mozilla-central', 'try',):
     BRANCHES[branch]['script_repo_manifest'] = \
         "https://hg.mozilla.org/%(repo_path)s/raw-file/%(revision)s/" + \
             "testing/mozharness/mozharness.json"
 
 #split 2.3 tests to ones that can run on ix and AWS
 for suite in ANDROID_2_3_MOZHARNESS_DICT:
     if suite[0].startswith('plain-reftest'):
         ANDROID_2_3_C3_DICT['opt_unittest_suites'].append(suite)

--- a/mozilla/config.py
+++ b/mozilla/config.py
@@ -2759,17 +2759,17 @@ BRANCHES['try']['platforms']['android-x8
 for platform in BRANCHES['try']['platforms'].keys():
     # Sadly, the rule that mobile builds go to /mobile/
     # isn't true for try :(
     BRANCHES['try']['platforms'][platform]['stage_product'] = 'firefox'
     # Disable symbol upload across the board
     BRANCHES['try']['platforms'][platform]['upload_symbols'] = False
 
 # Enable mozharness pinning
-for branch in ('ash', 'fx-team', 'try',):
+for branch in ('ash', 'fx-team', 'mozilla-central', 'try',):
     BRANCHES[branch]['script_repo_manifest'] = \
         "https://hg.mozilla.org/%(repo_path)s/raw-file/%(revision)s/" + \
         "testing/mozharness/mozharness.json"
 
 ######## generic branch configs
 for branch in ACTIVE_PROJECT_BRANCHES:
     branchConfig = PROJECT_BRANCHES[branch]
     BRANCHES[branch]['product_name'] = branchConfig.get('product_name', None)