diff --git a/.changeset/huge-chefs-sip.md b/.changeset/huge-chefs-sip.md
new file mode 100644
index 00000000000..e4b29ed78dc
--- /dev/null
+++ b/.changeset/huge-chefs-sip.md
@@ -0,0 +1,5 @@
+---
+'@firebase/messaging': minor
+---
+
+Allows @firebase/messaging to fail gracefully if the service worker is not found for whatever reason (i.e. Capacitor app, iOS Safari on some devices, etc) instead of crashing the entire application.
diff --git a/packages/messaging/src/helpers/register.ts b/packages/messaging/src/helpers/register.ts
index ef28cd2edad..8c22701995e 100644
--- a/packages/messaging/src/helpers/register.ts
+++ b/packages/messaging/src/helpers/register.ts
@@ -40,6 +40,11 @@ import { name, version } from '../../package.json';
 const WindowMessagingFactory: InstanceFactory<'messaging'> = (
   container: ComponentContainer
 ) => {
+  if (!navigator.serviceWorker) {
+    console.warn("Service workers are not supported in this environment.");
+    return;
+  }
+
   const messaging = new MessagingService(
     container.getProvider('app').getImmediate(),
     container.getProvider('installations-internal').getImmediate(),