As far as I've seen, the most recently committed fork of uMatrix is this one: https://github.com/nicolaasjan/nuTensor https://github.com/nicolaasjan/nuTensor

As far as I've seen, the most recently committed fork of uMatrix is this one: https://github.com/nicolaasjan/nuTensor https://github.com/nicolaasjan/nuTensor Why not just use the final release of uMatrix? Because it has a bug where it can delete your logon cookies when you navigate to another site. It also has bugs where the wrong rule is applied for a particular request (it picks the action defined for a different site).