--- a/testing/mozharness/configs/releases/bouncer_firefox_esr.py
+++ b/testing/mozharness/configs/releases/bouncer_firefox_esr.py
@@ -56,20 +56,19 @@ config = {
                 "win64": {
                     "path": "/firefox/releases/%(version)s/win64/:lang/Firefox%%20Setup%%20%(version)s.exe",
                     "bouncer-platform": "win64",
                 },
             },
         },
         "sha1-installer": {
             "product-name": "Firefox-%(version)s-sha1",
-            # TODO: enable when sha1 installers are automated in bug 1290179
-            "check_uptake": False,
-            # TODO: enable when sha1 installers are automated in bug 1290179
-            # "alias": "firefox-esr-sha1",
+            "check_uptake": True,
+            # XP/Vista Release users are redicted to ESR52
+            "alias": "firefox-sha1",
             "ssl-only": True,
             "add-locales": True,
             "paths": {
                 "win32": {
                     "path": "/firefox/releases/%(version)s/win32-sha1/:lang/Firefox%%20Setup%%20%(version)s.exe",
                     "bouncer-platform": "win",
                 },
             },

--- a/testing/mozharness/configs/releases/bouncer_firefox_release.py
+++ b/testing/mozharness/configs/releases/bouncer_firefox_release.py
@@ -99,29 +99,16 @@ config = {
             "add-locales": True,
             "paths": {
                 "win32": {
                     "path": "/firefox/releases/%(version)s/win32/:lang/Firefox%%20Setup%%20Stub%%20%(version)s.exe",
                     "bouncer-platform": "win",
                 },
             },
         },
-        "sha1-installer": {
-            "product-name": "Firefox-%(version)s-sha1",
-            "check_uptake": True,
-            "alias": "firefox-sha1",
-            "ssl-only": True,
-            "add-locales": True,
-            "paths": {
-                "win32": {
-                    "path": "/firefox/releases/%(version)s/win32-sha1/:lang/Firefox%%20Setup%%20%(version)s.exe",
-                    "bouncer-platform": "win",
-                },
-            },
-        },
         "complete-mar": {
             "product-name": "Firefox-%(version)s-Complete",
             "check_uptake": True,
             "ssl-only": False,
             "add-locales": True,
             "paths": {
                 "linux": {
                     "path": "/firefox/releases/%(version)s/update/linux-i686/:lang/firefox-%(version)s.complete.mar",