gorhill has published an alpha release of µMatrix, the long-awaited successor of HTTP Switchboard. It's not yet available on the Chrome webstore as it is not yet feature-complete. This site describes the changes compared to HTTPSB. I installed it a couple of hours ago, and so far no problems. I must really say that I like the new logic of µMatrix a lot: The fact that all scopes exist side by side makes it very easy to define global and/or domain/site-specific rules according to one's needs by quickly switching from one scope to the other(s). There are no longer inheritance problems like in HTTPSB. A major improvement, indeed! (I guess that Giorgio Maone must be be rather envious that he doesn't have anything comparable for Noscript ) Raymond, great work as usual One suggestion, though: The above wiki page is rather technical. Before bringing µMatrix to the webstore, an easy to understand documentation is important so that users can really exploit the power of this new wonderful extension.