diff --git a/packages/extension/manifest_firefox.json b/packages/extension/manifest_firefox.json
index 5cd0e83..4219925 100644
--- a/packages/extension/manifest_firefox.json
+++ b/packages/extension/manifest_firefox.json
@@ -17,7 +17,7 @@
   "browser_specific_settings": {
     "gecko": {
       "id": "{7cee9c4f-5fc7-4165-b4f8-f18e79fe9264}",
-      "strict_min_version": "142.0",
+      "strict_min_version": "109.0",
       "data_collection_permissions": {
         "required": ["none"]
       }