--- a/testing/mozharness/configs/releases/bouncer_firefox_beta.py
+++ b/testing/mozharness/configs/releases/bouncer_firefox_beta.py
@@ -65,16 +65,20 @@ config = {
             "alias": "firefox-beta-stub",
             "ssl-only": True,
             "add-locales": True,
             "paths": {
                 "win32": {
                     "path": "/firefox/releases/%(version)s/win32/:lang/Firefox%%20Setup%%20Stub%%20%(version)s.exe",
                     "bouncer-platform": "win",
                 },
+                "win64": {
+                    "path": "/firefox/releases/%(version)s/win32/:lang/Firefox%%20Setup%%20Stub%%20%(version)s.exe",
+                    "bouncer-platform": "win64",
+                },
             },
         },
         "complete-mar": {
             "product-name": "Firefox-%(version)s-Complete",
             "check_uptake": True,
             "ssl-only": False,
             "add-locales": True,
             "paths": {

--- a/testing/mozharness/configs/releases/bouncer_firefox_release.py
+++ b/testing/mozharness/configs/releases/bouncer_firefox_release.py
@@ -65,16 +65,20 @@ config = {
             "alias": "firefox-stub",
             "ssl-only": True,
             "add-locales": True,
             "paths": {
                 "win32": {
                     "path": "/firefox/releases/%(version)s/win32/:lang/Firefox%%20Setup%%20Stub%%20%(version)s.exe",
                     "bouncer-platform": "win",
                 },
+                "win64": {
+                    "path": "/firefox/releases/%(version)s/win32/:lang/Firefox%%20Setup%%20Stub%%20%(version)s.exe",
+                    "bouncer-platform": "win64",
+                },
             },
         },
         "complete-mar": {
             "product-name": "Firefox-%(version)s-Complete",
             "check_uptake": True,
             "ssl-only": False,
             "add-locales": True,
             "paths": {

--- a/testing/mozharness/configs/releases/dev_bouncer_firefox_beta.py
+++ b/testing/mozharness/configs/releases/dev_bouncer_firefox_beta.py
@@ -64,16 +64,20 @@ config = {
             "alias": "firefox-beta-stub",
             "ssl-only": True,
             "add-locales": False,
             "paths": {
                 "win32": {
                     "path": "/firefox/releases/%(version)s/win32/:lang/Firefox%%20Setup%%20Stub%%20%(version)s.exe",
                     "bouncer-platform": "win",
                 },
+                "win64": {
+                    "path": "/firefox/releases/%(version)s/win32/:lang/Firefox%%20Setup%%20Stub%%20%(version)s.exe",
+                    "bouncer-platform": "win64",
+                },
             },
         },
         "complete-mar": {
             "product-name": "Firefox-%(version)s-Complete",
             "check_uptake": True,
             "ssl-only": False,
             "add-locales": False,
             "paths": {