What is prefetching?
“Prefetching” is the silent loading of links in the background before you click them. This speeds up browsing because in many cases, by the time you click a link it is already cached on your machine and there is zero load time needed. By default, Firefox prefetches links which are explicitly marked by the web page designer to be prefetched. This is seldom done in practice, so you rarely benefit from it. Fasterfox’s “Enhanced Prefetching” causes all of the links on the page to be eligible for prefetching, which leads to a very noticeable difference in snappiness while surfing the web.
