diff --git a/modules/utils.js b/modules/utils.js
index fbb28d7e..cc7a2de6 100644
--- a/modules/utils.js
+++ b/modules/utils.js
@@ -1037,7 +1037,6 @@ var TreeStyleTabUtils = {
 		try {
 			this.checkCachedSessionDataExpiration(aTab);
 			this.SessionStore.setTabValue(aTab, aKey, aValue);
-			this.SessionStore.persistTabAttribute(aKey);
 		}
 		catch(e) {
 		}