--- a/toolkit/components/extensions/ExtensionStorageSync.jsm
+++ b/toolkit/components/extensions/ExtensionStorageSync.jsm
@@ -343,16 +343,17 @@ async function storageSyncInit() {
     storageSyncInit.promise = FirefoxAdapter.openConnection({path})
     .then(connection => {
       return {
         connection,
         kinto: new Kinto({
           adapter: FirefoxAdapter,
           adapterOptions: {sqliteHandle: connection},
           timeout: KINTO_REQUEST_TIMEOUT,
+          retry: 0,
         }),
       };
     }).catch(e => {
       // Ensure one failure doesn't break us forever.
       Cu.reportError(e);
       storageSyncInit.promise = undefined;
       throw e;
     });