I’m requesting help troubleshooting a microphone/audio issue with ChatGPT in Firefox.

I’m requesting help troubleshooting a microphone/audio issue with ChatGPT in Firefox. Computer/network information This is my personal home computer, not a company-managed computer. I am using my home Internet connection. Firefox version: 157.0 (64-bit). Firefox reports that it is up to date. Firefox’s start page also displays “What’s new in Firefox 157?” Microphone: Logitech Brio 101. Problem ChatGPT Voice does not recognize my speech when I use Firefox. The ChatGPT Voice interface starts and appears to be listening, but nothing happens when I speak. ChatGPT’s separate dictation feature also fails to transcribe my speech in Firefox. The important comparison is that ChatGPT Voice works correctly in Google Chrome on this exact same computer, using the same Logitech Brio 101 microphone and the same Internet connection. What we have tested Verified in Windows Sound settings that the Logitech Brio 101 is the default microphone and that its input-level meter moves when I speak. Confirmed that the Brio 101 microphone works correctly in other applications, including Zoom. Confirmed that ChatGPT Voice works correctly in Google Chrome on this same computer. Checked Firefox permissions for chatgpt.com. Firefox is allowed to use the microphone. Firefox displays the red microphone indicator in the address bar when ChatGPT attempts to use the microphone. Reset the microphone/site permissions for ChatGPT in Firefox and granted them again. Changed the Firefox microphone permission to “Always Ask” so that Firefox would prompt me to select a microphone. During that prompt, Firefox initially showed an External Mic/Sound Blaster input. I explicitly changed the microphone to the Logitech Brio 101 and granted permission. Even with the Brio 101 explicitly selected, ChatGPT Voice still did not recognize my speech. Changed Firefox Autoplay permissions for ChatGPT to Allow Audio and Video. Verified that the ChatGPT Firefox tab was not muted. Started Firefox in Troubleshoot Mode to disable extensions and other customizations. ChatGPT Voice still did not recognize my speech. Tested ChatGPT’s separate dictation microphone in Firefox. When I speak, the visual indicator dots react to my voice and become darker, suggesting that microphone activity is being detected. However, no speech is converted to text. Opened the Firefox Web Console with Ctrl+Shift+K, cleared the console, started ChatGPT Voice, and repeatedly spoke into the microphone while monitoring the console. ChatGPT still did not recognize my speech, and the Web Console remained blank with no error messages displayed. Repeated the test in Google Chrome. ChatGPT Voice works correctly there using the same computer, microphone, home network, and ChatGPT account. Current findings The Logitech Brio 101 itself appears to be functioning correctly. Windows receives its audio, other applications receive its audio, and ChatGPT Voice works with it in Chrome. The failure appears to be specific to Firefox. Firefox appears to obtain microphone access and even detects microphone activity during ChatGPT dictation, but ChatGPT does not receive usable speech/audio for Voice or produce a transcription through dictation. Because the problem remains in Firefox Troubleshoot Mode, it does not appear to be caused by a normal Firefox extension. Could you please advise what Firefox-specific diagnostics or settings I should check next? I would particularly like to determine why Firefox appears to receive microphone activity from the Logitech Brio 101 but ChatGPT Voice and dictation cannot process the audio, while the same features work correctly in Chrome.