This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox loses audio after disconnect from RDP session.

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by Joey Sun

more options

If Remote Desktop is set to play audio on the local device, all audio devices on the remote machine are changed to Remoteaudio, which will handle signals to and from the machine.

If Firefox is started after connection, it will use the device and send audio to the local machine, however, if the session is disconnected, the physical devices return and Remoteaudio disappears.

When the session is reconnected, FF refuses to play any sound, until it is restarted, despite showing up as a source on the windows mixer.

Is it possible to reattach the audio stream to a device by having FF follow the Windows device selection?

If Remote Desktop is set to play audio on the local device, all audio devices on the remote machine are changed to Remoteaudio, which will handle signals to and from the machine. If Firefox is started after connection, it will use the device and send audio to the local machine, however, if the session is disconnected, the physical devices return and Remoteaudio disappears. When the session is reconnected, FF refuses to play any sound, until it is restarted, despite showing up as a source on the windows mixer. Is it possible to reattach the audio stream to a device by having FF follow the Windows device selection?

All Replies (2)

more options

Hi, Type about:config in the address bar and press Enter. A warning page may appear. Click Accept the Risk and Continue to continue to the about:config page. Search for the security.sandbox.content.level preference. Click the Edit button next to the preference and set its value to 2. Click on the checkmark to save the change. start Firefox on the remote device.

Thank you.

more options

Hello, I've seen the ticket, where this was mentioned, however, I am not sure if decreasing the security level is the right solution. Or is it meant as a temporary fix? Don't want to sound snarky, but shouldn't changing audio devices be a thing the browser could handle? Kind regards.