To provide a multimodal control device and method, wherein existing browsers can be used to achieve synchronization with fine granularity, while making full use of GUI browsability. A multimodal control device comprises input focus managing means for managing input focus items in document data, content generation means for generating content, in accordance with a modality type, from document data within a data input item range including input focus items, and content transmission means for transmitting generated content to the corresponding browser.