Realtime voice behaviour not working properly on Mozilla firefox

This is still an issue for me on 151.0.2 (64-bit). The original reporter in the reference thread provided a great deal of detail, what may also help is the corresponding thread on the Firefox side where they discuss the ongoing issue:

bugzilla.mozilla.org

2037009 - WebRTC ICE consent-refresh times out mid-session against OpenAI...

UNCONFIRMED (docfaraday) in Core - WebRTC: Networking. Last updated 2026-05-30.