Herbert Van de Sompel. Michael L. Nelson, and Robert Sanderson have announced the release of the MementoFox Add-on.
Here's an excerpt from the announcement:
We are excited to share some news about the Memento (Time Travel for the Web) effort. Memento proposes to extend HTTP with datetime content negotiation as a means to better integrate the present and past Web. The Memento effort is partly funded by the Library of Congress.
=>The MementoFox add-on for FireFox browsers has been released. It allows time travel on the Web in a manner compliant with the Memento framework.
(*) The MementoFox add-on can be downloaded at https://addons.mozilla.org/en-US/firefox/addon/100298.
(*) Suggested Web time travels that can be undertaken using the add-on are described at http://www.mementoweb.org/demo/. They involve navigations for both the document Web and the Linked Data cloud.
=> There is also a Memento plug-in available for the MediaWiki platform. The plug-in provides support for Memento-style navigation of a Wiki's history pages.
(*) The MediaWiki plug-in can be downloaded at http://www.mediawiki.org/wiki/Extension:Memento.
(*) If you run a MediaWiki platform, please install this plug-in and let us know the URI of your Wiki.
See also: Memento project website.