diff --git a/testing/mozharness/mozharness/mozilla/testing/raptor.py b/testing/mozharness/mozharness/mozilla/testing/raptor.py
index 89ae185bcc7c..5f55e16825ce 100644
--- a/testing/mozharness/mozharness/mozilla/testing/raptor.py
+++ b/testing/mozharness/mozharness/mozilla/testing/raptor.py
@@ -337,6 +337,11 @@ class Raptor(TestingMixin, MercurialScript, CodeCoverageMixin, AndroidMixin):
             if not binary_path:
                 self.fatal("Raptor requires a path to the binary.")
             kw_options['binary'] = binary_path
+            if self.app in["geckoview", "fennec"]:
+                # in production ensure we have correct app name,
+                # i.e. fennec_aurora or fennec_release etc.
+                kw_options['binary'] = self.query_package_name()
+                self.info("set binary to %s instead of %s" % (kw_options['binary'], binary_path))
         else:  # running on google chrome
             if not self.run_local:
                 # when running locally we already set the chrome binary above in init; here
diff --git a/testing/raptor/raptor/raptor.py b/testing/raptor/raptor/raptor.py
index 104630e19324..646ef1f99c34 100644
--- a/testing/raptor/raptor/raptor.py
+++ b/testing/raptor/raptor/raptor.py
@@ -314,14 +314,6 @@ class Raptor(object):
                     raise
             else:
                 # launch fennec
-
-                # when running locally the 'binary' is provided on the mach raptor-test cmd line,
-                # i.e. `org.mozilla.fennec_aurora` for fennec nightly
-                # in production the default `.fennec_aurora` comes form the tc config;
-                # if we're running in production but on beta that needs to be changed to `.fennec`
-                if not self.config['run_local'] and self.config['is_release_build']:
-                    self.config['binary'] = 'org.mozilla.fennec'
-
                 try:
                     # if fennec is already running, shut it down first
                     self.device.stop_application(self.config['binary'])