new file mode 100644
--- /dev/null
+++ b/testing/mozharness/configs/builds/taskcluster_firefox_win64_asan_debug.py
@@ -0,0 +1,91 @@
+import os
+import sys
+
+config = {
+    #########################################################################
+    ######## WINDOWS GENERIC CONFIG KEYS/VAlUES
+    # if you are updating this with custom 64 bit keys/values please add them
+    # below under the '64 bit specific' code block otherwise, update in this
+    # code block and also make sure this is synced between:
+    # - taskcluster_firefox_win32_debug
+    # - taskcluster_firefox_win32_opt
+    # - taskcluster_firefox_win64_debug
+    # - taskcluster_firefox_win64_opt
+    # - taskcluster_firefox_win32_clang
+    # - taskcluster_firefox_win32_clang_debug
+    # - taskcluster_firefox_win64_clang
+    # - taskcluster_firefox_win64_clang_debug
+
+    'default_actions': [
+        'clone-tools',
+        'build',
+        'check-test',
+    ],
+    'exes': {
+        'python2.7': sys.executable,
+        'make': [
+            sys.executable,
+            os.path.join(
+                os.getcwd(), 'build', 'src', 'build', 'pymake', 'make.py'
+            )
+        ],
+        'virtualenv': [
+            sys.executable,
+            os.path.join(
+                os.getcwd(), 'build', 'src', 'python', 'virtualenv', 'virtualenv.py'
+            )
+        ],
+        'mach-build': [
+            os.path.join(os.environ['MOZILLABUILD'], 'msys', 'bin', 'bash.exe'),
+            os.path.join(os.getcwd(), 'build', 'src', 'mach'),
+            '--log-no-times', 'build', '-v'
+        ],
+    },
+    'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
+    # decides whether we want to use moz_sign_cmd in env
+    'enable_signing': True,
+    'enable_ccache': False,
+    'vcs_share_base': os.path.join('y:', os.sep, 'hg-shared'),
+    'objdir': 'obj-firefox',
+    'tooltool_script': [
+      sys.executable,
+      os.path.join(os.environ['MOZILLABUILD'], 'tooltool.py')
+    ],
+    'tooltool_bootstrap': 'setup.sh',
+    'enable_count_ctors': False,
+    'max_build_output_timeout': 60 * 80,
+    #########################################################################
+
+
+     #########################################################################
+     ###### 64 bit specific ######
+    'base_name': 'WINNT_6.1_x86-64_%(branch)s',
+    'platform': 'win64',
+    'stage_platform': 'win64-asan-debug',
+    'debug_build': True,
+    'publish_nightly_en_US_routes': True,
+    'env': {
+        'HG_SHARE_BASE_DIR': os.path.join('y:', os.sep, 'hg-shared'),
+        'MOZ_AUTOMATION': '1',
+        'MOZ_CRASHREPORTER_NO_REPORT': '1',
+        'MOZ_OBJDIR': 'obj-firefox',
+        'PDBSTR_PATH': '/c/Program Files (x86)/Windows Kits/10/Debuggers/x64/srcsrv/pdbstr.exe',
+        'TINDERBOX_OUTPUT': '1',
+        'TOOLTOOL_CACHE': '/c/builds/tooltool_cache',
+        'TOOLTOOL_HOME': '/c/builds',
+        'XPCOM_DEBUG_BREAK': 'stack-and-abort',
+        'MSYSTEM': 'MINGW32',
+    },
+    'upload_env': {
+        'UPLOAD_HOST': 'localhost',
+        'UPLOAD_PATH': os.path.join(os.getcwd(), 'public', 'build'),
+    },
+    "check_test_env": {
+        'MINIDUMP_STACKWALK': '%(abs_tools_dir)s\\breakpad\\win64\\minidump_stackwalk.exe',
+        'MINIDUMP_SAVE_PATH': '%(base_work_dir)s\\minidumps',
+    },
+    'enable_pymake': True,
+    'src_mozconfig': 'browser\\config\\mozconfigs\\win64\\debug-asan',
+    'tooltool_manifest_src': 'browser\\config\\tooltool-manifests\\win64\\clang.manifest',
+    #########################################################################
+}

new file mode 100644
--- /dev/null
+++ b/testing/mozharness/configs/builds/taskcluster_firefox_win64_asan_opt.py
@@ -0,0 +1,89 @@
+import os
+import sys
+
+config = {
+    #########################################################################
+    ######## WINDOWS GENERIC CONFIG KEYS/VAlUES
+    # if you are updating this with custom 64 bit keys/values please add them
+    # below under the '64 bit specific' code block otherwise, update in this
+    # code block and also make sure this is synced between:
+    # - taskcluster_firefox_win32_debug
+    # - taskcluster_firefox_win32_opt
+    # - taskcluster_firefox_win64_debug
+    # - taskcluster_firefox_win64_opt
+    # - taskcluster_firefox_win32_clang
+    # - taskcluster_firefox_win32_clang_debug
+    # - taskcluster_firefox_win64_clang
+    # - taskcluster_firefox_win64_clang_debug
+
+    'default_actions': [
+        'clone-tools',
+        'build',
+        'check-test',
+    ],
+    'exes': {
+        'python2.7': sys.executable,
+        'make': [
+            sys.executable,
+            os.path.join(
+                os.getcwd(), 'build', 'src', 'build', 'pymake', 'make.py'
+            )
+        ],
+        'virtualenv': [
+            sys.executable,
+            os.path.join(
+                os.getcwd(), 'build', 'src', 'python', 'virtualenv', 'virtualenv.py'
+            )
+        ],
+        'mach-build': [
+            os.path.join(os.environ['MOZILLABUILD'], 'msys', 'bin', 'bash.exe'),
+            os.path.join(os.getcwd(), 'build', 'src', 'mach'),
+            '--log-no-times', 'build', '-v'
+        ],
+    },
+    'app_ini_path': '%(obj_dir)s/dist/bin/application.ini',
+    # decides whether we want to use moz_sign_cmd in env
+    'enable_signing': True,
+    'enable_ccache': False,
+    'vcs_share_base': os.path.join('y:', os.sep, 'hg-shared'),
+    'objdir': 'obj-firefox',
+    'tooltool_script': [
+      sys.executable,
+      os.path.join(os.environ['MOZILLABUILD'], 'tooltool.py')
+    ],
+    'tooltool_bootstrap': 'setup.sh',
+    'enable_count_ctors': False,
+    'max_build_output_timeout': 60 * 80,
+    #########################################################################
+
+
+     #########################################################################
+     ###### 64 bit specific ######
+    'base_name': 'WINNT_6.1_x86-64_%(branch)s',
+    'platform': 'win64',
+    'stage_platform': 'win64-asan',
+    'publish_nightly_en_US_routes': True,
+    'env': {
+        'HG_SHARE_BASE_DIR': os.path.join('y:', os.sep, 'hg-shared'),
+        'MOZ_AUTOMATION': '1',
+        'MOZ_CRASHREPORTER_NO_REPORT': '1',
+        'MOZ_OBJDIR': 'obj-firefox',
+        'PDBSTR_PATH': '/c/Program Files (x86)/Windows Kits/10/Debuggers/x64/srcsrv/pdbstr.exe',
+        'TINDERBOX_OUTPUT': '1',
+        'TOOLTOOL_CACHE': '/c/builds/tooltool_cache',
+        'TOOLTOOL_HOME': '/c/builds',
+        'MSYSTEM': 'MINGW32',
+    },
+    'upload_env': {
+        'UPLOAD_HOST': 'localhost',
+        'UPLOAD_PATH': os.path.join(os.getcwd(), 'public', 'build'),
+    },
+    "check_test_env": {
+        'MINIDUMP_STACKWALK': '%(abs_tools_dir)s\\breakpad\\win64\\minidump_stackwalk.exe',
+        'MINIDUMP_SAVE_PATH': '%(base_work_dir)s\\minidumps',
+    },
+    'enable_pymake': True,
+    'src_mozconfig': 'browser\\config\\mozconfigs\\win64\\nightly-asan',
+    'tooltool_manifest_src': 'browser\\config\\tooltool-manifests\\win64\\clang.manifest',
+    #########################################################################
+}