Mozilla 說明了 Multi-Process 最近的一些進度：「Update on Multi-Process Firefox」。
Those users have been enjoying the 400% increase in responsiveness and a 700% improvement when web pages are loading.
現在的 Firefox 是 50 版，目前的情況是當 extension 標成 multi-process compatible 就會啟用：
With Firefox 49 we deployed multi-process Firefox to users with a select set of well tested extensions. Our measurements and user feedback were all positive and so with Firefox 50 we deployed multi-process Firefox to users with a broader set of extensions, those whose authors have marked them as multi-process compatible.
下一個版本 (51) 則是會全面開啟，除非有 extension 標成 multi-process incompatible：
Beyond Firefox 50, we have more work to do to enable multi-process Firefox for users with as yet unsupported extensions. In Firefox 51, if all testing goes according to plan, we’ll be enabling multi-process Firefox for users with extensions that are not explicitly marked as incompatible with multi-process Firefox.