diff --git a/manifest-chromium.json b/manifest-chromium.json
index b7088de..4c2e5f4 100644
--- a/manifest-chromium.json
+++ b/manifest-chromium.json
@@ -319,5 +319,6 @@
     "https://breeze.whateveritworks.org/*"
   ],
   "optional_host_permissions": ["https://*/*"],
+  "minimum_chrome_version": "80",
   "manifest_version": 3
 }
diff --git a/manifest-firefox.json b/manifest-firefox.json
index dc6790f..bb87a99 100644
--- a/manifest-firefox.json
+++ b/manifest-firefox.json
@@ -316,7 +316,8 @@
   "optional_permissions": ["https://*/*"],
   "applications": {
     "gecko": {
-      "id": "{cb31ec5d-c49a-4e5a-b240-16c767444f62}"
+      "id": "{cb31ec5d-c49a-4e5a-b240-16c767444f62}",
+      "strict_min_version": "113"
     }
   },
   "manifest_version": 2