gecko-dev/remote

The Firefox remote agent is a low-level debugging interface based
on the CDP protocol.

With it, you can inspect the state and control execution of documents
running in web content, instrument Gecko in interesting ways,
simulate user interaction for automation purposes, and debug
JavaScript execution.

This component provides an experimental and partial implementation
of a remote devtools interface using the CDP protocol and transport
layer.

See https://firefox-source-docs.mozilla.org/remote/ for documentation.

It is available in Firefox Nightly and is started this way:

	% ./mach run --remote-debugging-port