diff --git a/frontend/src/components/DownloadCenter.tsx b/frontend/src/components/DownloadCenter.tsx
index bc29a71..2950b62 100644
--- a/frontend/src/components/DownloadCenter.tsx
+++ b/frontend/src/components/DownloadCenter.tsx
@@ -191,7 +191,10 @@ function RenameModal({ job, onClose }: { job: DownloadJob; onClose: () => void }
 
 function UsageBar() {
   const { t } = useTranslation();
-  const usage = useQuery({ queryKey: ["download-usage"], queryFn: api.downloadUsage });
+  // Poll live (like the library list) so the footprint updates the moment the worker finishes an
+  // edit/download — enqueue only creates a queued job (0 bytes), the size lands asynchronously, so
+  // a one-shot fetch at enqueue time would show a stale 0 B until a manual reload.
+  const usage = useLiveQuery(["download-usage"], api.downloadUsage, { intervalMs: 2000 });
   const u = usage.data;
   if (!u) return null;
   const pct = u.unlimited || !u.max_bytes ? 0 : Math.min(100, (u.footprint_bytes / u.max_bytes) * 100);