diff --git a/manifest.json b/manifest.json
index 6e9d4db..33d6ed7 100644
--- a/manifest.json
+++ b/manifest.json
@@ -7,7 +7,8 @@
     "applications": {
         "gecko": {
             "id": "subaddress-reply@swebhosting.de",
-            "strict_min_version": "91.3.1"
+            "strict_min_version": "91.0",
+            "strict_max_version": "102.*"
         }
     },
     "icons": {