diff --git a/packages/playwright-core/src/server/chromium/crPage.ts b/packages/playwright-core/src/server/chromium/crPage.ts
index 1048d23dba..a7ee34d2c5 100644
--- a/packages/playwright-core/src/server/chromium/crPage.ts
+++ b/packages/playwright-core/src/server/chromium/crPage.ts
@@ -432,6 +432,8 @@ class FrameSession {
       this._firstNonInitialNavigationCommittedFulfill = f;
       this._firstNonInitialNavigationCommittedReject = r;
     });
+    // The Promise is not always awaited (e.g. FrameSession._initialize can throw)
+    // so we catch errors here to prevent unhandled promise rejection.
     this._firstNonInitialNavigationCommittedPromise.catch(() => {});
   }