Abstract: Methods and systems are described for using files or data (e.g., cookies) stored in network storage (e.g., the cloud) in lieu of files or data stored locally. A request for a plurality of files can be received from a device. The request can comprise a device identifier and a user identifier. The user identifier can be used to determine an associated account. A format for the requested plurality of files can be determined based on the device identifier. In an aspect, the device can have limited/no local persistent storage. Prior to transmission, the requested plurality of files can be formatted according to the determined format. For example, a user can access an HTML application from a device with limited/no local persistent storage, such as a set-top box. The device can request a plurality of files, such as cookies, from persistent storage. The persistent storage can be cloud storage.