--- a/taskcluster/ci/test/test-platforms.yml
+++ b/taskcluster/ci/test/test-platforms.yml
@@ -250,16 +250,25 @@ macosx64-nightly/opt:
         - macosx64-talos-profiling
         - awsy
 
 macosx64-devedition/opt:
     build-platform: macosx64-devedition-nightly/opt
     test-sets:
         - macosx64-tests
 
+macosx64-qr/opt:
+    build-platform: macosx64/opt
+    test-sets:
+        - macosx64-qr-tests
+macosx64-qr/debug:
+    build-platform: macosx64/debug
+    test-sets:
+        - macosx64-qr-tests
+
 ##
 # Android platforms (matching /android.*/)
 
 android-4.3-arm7-api-16/debug:
     build-platform: android-api-16/debug
     test-sets:
         - android-common-tests
         - android-debug-tests

--- a/taskcluster/ci/test/test-sets.yml
+++ b/taskcluster/ci/test/test-sets.yml
@@ -301,16 +301,20 @@ macosx64-talos-profiling:
     - talos-perf-reftest-singletons-profiling
     - talos-speedometer-profiling
     - talos-motionmark-profiling
     - talos-svgr-profiling
     - talos-tp5o-profiling
     - talos-tp6-profiling
     # - talos-tps-profiling # Bug 1453007 times out
 
+macosx64-qr-tests:
+    - reftest
+    - reftest-fonts
+
 linux32-tests:
     - cppunit
     - crashtest
     - firefox-ui-functional-local
     - firefox-ui-functional-remote
     - gtest
     - jittest
     - jsreftest

--- a/taskcluster/taskgraph/transforms/tests.py
+++ b/taskcluster/taskgraph/transforms/tests.py
@@ -537,18 +537,28 @@ def set_treeherder_machine_platform(conf
         # The build names for Android platforms have partially evolved over the
         # years and need to be translated.
         'android-api-16/debug': 'android-4-3-armv7-api16/debug',
         'android-api-16/opt': 'android-4-3-armv7-api16/opt',
         'android-x86/opt': 'android-4-2-x86/opt',
         'android-api-16-gradle/opt': 'android-api-16-gradle/opt',
     }
     for test in tests:
-        test['treeherder-machine-platform'] = translation.get(
-            test['build-platform'], test['test-platform'])
+        # For most desktop platforms, the above table is not used for "regular"
+        # builds, so we'll always pick the test platform here.
+        # On macOS though, the regular builds are in the table.  This causes a
+        # conflict in `verify_task_graph_symbol` once you add a new test
+        # platform based on regular macOS builds, such as for QR.
+        # Since it's unclear if the regular macOS builds can be removed from
+        # the table, workaround the issue for QR.
+        if '-qr' in test['test-platform']:
+            test['treeherder-machine-platform'] = test['test-platform']
+        else:
+            test['treeherder-machine-platform'] = translation.get(
+                test['build-platform'], test['test-platform'])
         yield test
 
 
 @transforms.add
 def set_tier(config, tests):
     """Set the tier based on policy for all test descriptions that do not
     specify a tier otherwise."""
     for test in tests: