A browsing process is directed to the generation and management of a browse session at a network computing provider. A client computing device requests a remote browse session instance at a network computing provider. The browse session instance may correspond to requested network content. The network computing provider determines a browse configuration. The browse configuration may identify a communication protocol and various processing actions. The network computing provider retrieves the requested content through an instantiated network browse session instance, and performs a first set of processing actions to generate a processing result. The network computing provider determines whether the requested content is likely to perform high risk operations on the client computing device, and notifies the user or transmits a processed representation of the requested content to the user such that the likelihood of high risk operations being performed on the client computing device is reduced.