web: Note Ruffle does not collect user data (Firefox) (ruffle-rs#21983)

Author: danielhjacobs

web/packages/extension/webpack.config.js

@@ -47,6 +47,9 @@ function transformManifest(content, env) {
         manifest.browser_specific_settings = {
             gecko: {
                 id: firefoxExtensionId,
+                data_collection_permissions: {
+                    required: ["none"],
+                },
             },
         };
         manifest.background = {