Similar technology to Chrome's Native Client Messaging in Firefox?

Question

We want to replace a custom NPAPI interface between a browser based web application and an client side daemon process.

Is there a similar technology to Chrome\'s Native

Answer 1

With new support for Mozilla 'Chrome' WebExtensions API seems like soon there will be a very similar technology to Chrome's Native Client Messaging.

At this time it's still on the 'List of APIs [mozilla] will likely support in the future'