Zipedia is a Firefox extension allowing offline viewing of Wikipedia. An XML wiki dump needs to be downloaded from wikipedia and processed before the wikipedia articles become available. For a quick demo and instructions, install the XPI file and visit the special URL wikipedia://wiki/MainPage. Only article text - no images - is available offline. The Zipedia XPI install file can be downloaded from Mozilla add-ons at https://addons.mozilla.org/firefox/2423.