Message manager 编辑

Message managers provide a way for chrome-privileged JavaScript code to communicate across process boundaries. They are particularly useful for allowing chrome code, including the browser's code and extension's code, to access web content while the browser is running web content in a separate process.

These guides explain how to use message managers in multiprocess Firefox.

Note that none of this requires multiprocess Firefox: everything described here will work with single-process Firefox, so the same code will work on both variants.

Guides

Message manager overview

 

Frame script loading and lifetime

 

Communicating with frame scripts

 

Performance Best Practices

 

Frame script environment

 

Limitations of frame scripts

 

Process scripts

 

API reference

nsIFrameScriptLoader

 

nsIMessageListenerManager

 

nsIMessageBroadcaster

 

nsIMessageSender

 

nsISyncMessageSender

 

nsIContentFrameMessageManager

 

nsIProcessScriptLoader