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 one or more browse configurations. Different browse configurations can be determined for separate portions of the requested network content. The browse configurations 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 processing result may be provided to the client computing device for display, including performing a second set of processing actions on the processing result at the client computing device.