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Firefox does not respect macOS system audio playback routing

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I am using the latest Firefox 65 on macOS 10.13.6.

Issue: No audio playback can be heard through the browser. I am using a Soundcraft Signature 22 MTK multi-channel interface where audio playback is routed through channels 21/22 through Audio Midi settings in macOS.

It seems that Firefox is hard coded (and incorrectly assumes) all systems will default to channels 1-2 for audio playback.

I can tell it's defaulting to 1-2 because if I route audio to those channels in macOS and then us the USB return on those channels on my console, I can hear sound.

It should be respecting how audio is routed at the system level.

I am using the latest Firefox 65 on macOS 10.13.6. Issue: No audio playback can be heard through the browser. I am using a Soundcraft Signature 22 MTK multi-channel interface where audio playback is routed through channels 21/22 through Audio Midi settings in macOS. It seems that Firefox is hard coded (and incorrectly assumes) all systems will default to channels 1-2 for audio playback. I can tell it's defaulting to 1-2 because if I route audio to those channels in macOS and then us the USB return on those channels on my console, I can hear sound. It should be respecting how audio is routed at the system level.
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Ứng dụng

  • Firefox 65.0
  • Chuỗi đại diện người dùng: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:65.0) Gecko/20100101 Firefox/65.0
  • URL hỗ trợ: https://support.mozilla.org/1/firefox/65.0/Darwin/en-CA/

Tiện ích mở rộng

  • 1Password extension (desktop app required) 4.7.3.90 (onepassword4@agilebits.com)
  • Tree Tabs 1.9.3 (TreeTabs@jagiello.it)

Javascript

  • incrementalGCEnabled: True

Đồ họa

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  • webgl1Renderer: ATI Technologies Inc. -- AMD Radeon RX 580 OpenGL Engine
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  • webgl2Renderer: ATI Technologies Inc. -- AMD Radeon RX 580 OpenGL Engine
  • webgl2Version: 4.1 ATI-1.68.21
  • webgl2WSIInfo: CGL
  • windowLayerManagerRemote: True
  • windowLayerManagerType: OpenGL
  • windowUsingAdvancedLayers: False

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