[pfooti]

You can't inspect websocket frames. It is a tiny quibble in the face of big amazing improvements. But it is a thing (and is why I still use chrome primarily for development), and the extension used to patch this in to the devtools broke in the big extensions change.

[robin_reala]

They’re planning to build that in at the beginning of the new year: https://bugzilla.mozilla.org/show_bug.cgi?id=885508#c37