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Firefox does not send audio over bluetooth unless another program starts playing audio

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pmkkoch
pmkkoch
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Hi. I have Firefox 75.0 (64 bit) and I am facing a very annoying issue that is especially irritating now during coronavirus day, when I have to work a lot with video chats et cetera.

So I have noticed that Firefox is having problems with sending audio on bluetooth headphones. The headphones are Sony WH-CH500 and they seem to be rather cheap and popular device these days. Anyway, for some reason sometimes when watching youtube or entering a video chat I notice that Firefox does not send audio for bluetooth headphones. It plays sound correctly when I switch sound to built-in or secondary display speakers, but bluetooth headphones just don't get any sound.

This issue vanish for a moment if I play sound on another app, for example Spotify.

What is even more annoying is I have noticed that on some video chats, like Google Meet or usosweb video-chat the sound just don't want to play when I have a microphone turned on. Sometimes it works, sometimes it doesn't, it is completely random but always happens with Firefox only.

As you can imagine this is extremely annoying, because when someone stops talking or the music stops playing, the headphones just stop receiving sound again.

Like I said earlier this is not an issue with the hardware because all the other apps work perfectly. Only firefox seems to have issues. The problem's been so annyoing lately that I finally decided to write about it since I just cannot put my speakers full on when two of my flatmates are working remotely at the same hours. Does anyone know why does this happen?

My specs: Operating System: Windows 10 Home 64-bit (10.0, Build 18363) (18362.19h1_release.190318-1202) System Manufacturer: Acer System Model: Aspire V5-573G BIOS: InsydeH2O Version 03.73.06V2.30 (type: BIOS) Processor: Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz (4 CPUs), ~2.4GHz Memory: 8192MB RAM Available OS Memory: 8076MB RAM Card name: Intel(R) HD Graphics Family Display Memory: 2160 MB Dedicated Memory: 112 MB Shared Memory: 2048 MB Card name: NVIDIA GeForce GTX 850M Display Memory: 8093 MB Dedicated Memory: 4055 MB Shared Memory: 4038 MB

Sound Devices

Description: Słuchawki (WH-CH500 Stereo) 

Default Sound Playback: Yes
Default Voice Playback: No
           Hardware ID: BTHENUM\{0000110b-0000-1000-8000-00805f9b34fb}_VID&00010094_PID&4c63
       Manufacturer ID: 1
            Product ID: 65535
                  Type: WDM
           Driver Name: BthA2dp.sys
        Driver Version: 10.00.18362.0693 (English)
     Driver Attributes: Final Retail
           WHQL Logo'd: Yes
         Date and Size: 9/3/2019 12:00:00 AM, 231936 bytes
           Other Files: 
       Driver Provider: Microsoft
        HW Accel Level: Basic
             Cap Flags: 0xF1F
   Min/Max Sample Rate: 100, 200000

Static/Strm HW Mix Bufs: 1, 0 

Static/Strm HW 3D Bufs: 0, 0
             HW Memory: 0
      Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
  I3DL2(tm) Listen/Src: No, No

Sensaura(tm) ZoomFX(tm): No 

           Description: Głośniki (Realtek High Definition Audio)
Default Sound Playback: Yes
Default Voice Playback: Yes
           Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0282&SUBSYS_1025079B&REV_1000
       Manufacturer ID: 1
            Product ID: 100
                  Type: WDM
           Driver Name: RTKVHD64.sys
        Driver Version: 6.00.0001.7027 (English)
     Driver Attributes: Final Retail
           WHQL Logo'd: Yes
         Date and Size: 8/27/2013 12:00:00 AM, 3613528 bytes
           Other Files: 
       Driver Provider: Realtek Semiconductor Corp.
        HW Accel Level: Basic
             Cap Flags: 0xF1F
   Min/Max Sample Rate: 100, 200000

Static/Strm HW Mix Bufs: 1, 0 

Static/Strm HW 3D Bufs: 0, 0
             HW Memory: 0
      Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
  I3DL2(tm) Listen/Src: No, No

Sensaura(tm) ZoomFX(tm): No

Hi. I have Firefox 75.0 (64 bit) and I am facing a very annoying issue that is especially irritating now during coronavirus day, when I have to work a lot with video chats et cetera. So I have noticed that Firefox is having problems with sending audio on bluetooth headphones. The headphones are Sony WH-CH500 and they seem to be rather cheap and popular device these days. Anyway, for some reason sometimes when watching youtube or entering a video chat I notice that Firefox does not send audio for bluetooth headphones. It plays sound correctly when I switch sound to built-in or secondary display speakers, but bluetooth headphones just don't get any sound. This issue vanish for a moment if I play sound on another app, for example Spotify. What is even more annoying is I have noticed that on some video chats, like Google Meet or usosweb video-chat the sound just don't want to play when I have a microphone turned on. Sometimes it works, sometimes it doesn't, it is completely random but always happens with Firefox only. As you can imagine this is extremely annoying, because when someone stops talking or the music stops playing, the headphones just stop receiving sound again. Like I said earlier this is not an issue with the hardware because all the other apps work perfectly. Only firefox seems to have issues. The problem's been so annyoing lately that I finally decided to write about it since I just cannot put my speakers full on when two of my flatmates are working remotely at the same hours. Does anyone know why does this happen? My specs: Operating System: Windows 10 Home 64-bit (10.0, Build 18363) (18362.19h1_release.190318-1202) System Manufacturer: Acer System Model: Aspire V5-573G BIOS: InsydeH2O Version 03.73.06V2.30 (type: BIOS) Processor: Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz (4 CPUs), ~2.4GHz Memory: 8192MB RAM Available OS Memory: 8076MB RAM Card name: Intel(R) HD Graphics Family Display Memory: 2160 MB Dedicated Memory: 112 MB Shared Memory: 2048 MB Card name: NVIDIA GeForce GTX 850M Display Memory: 8093 MB Dedicated Memory: 4055 MB Shared Memory: 4038 MB ------------- Sound Devices ------------- Description: Słuchawki (WH-CH500 Stereo) Default Sound Playback: Yes Default Voice Playback: No Hardware ID: BTHENUM\{0000110b-0000-1000-8000-00805f9b34fb}_VID&00010094_PID&4c63 Manufacturer ID: 1 Product ID: 65535 Type: WDM Driver Name: BthA2dp.sys Driver Version: 10.00.18362.0693 (English) Driver Attributes: Final Retail WHQL Logo'd: Yes Date and Size: 9/3/2019 12:00:00 AM, 231936 bytes Other Files: Driver Provider: Microsoft HW Accel Level: Basic Cap Flags: 0xF1F Min/Max Sample Rate: 100, 200000 Static/Strm HW Mix Bufs: 1, 0 Static/Strm HW 3D Bufs: 0, 0 HW Memory: 0 Voice Management: No EAX(tm) 2.0 Listen/Src: No, No I3DL2(tm) Listen/Src: No, No Sensaura(tm) ZoomFX(tm): No Description: Głośniki (Realtek High Definition Audio) Default Sound Playback: Yes Default Voice Playback: Yes Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0282&SUBSYS_1025079B&REV_1000 Manufacturer ID: 1 Product ID: 100 Type: WDM Driver Name: RTKVHD64.sys Driver Version: 6.00.0001.7027 (English) Driver Attributes: Final Retail WHQL Logo'd: Yes Date and Size: 8/27/2013 12:00:00 AM, 3613528 bytes Other Files: Driver Provider: Realtek Semiconductor Corp. HW Accel Level: Basic Cap Flags: 0xF1F Min/Max Sample Rate: 100, 200000 Static/Strm HW Mix Bufs: 1, 0 Static/Strm HW 3D Bufs: 0, 0 HW Memory: 0 Voice Management: No EAX(tm) 2.0 Listen/Src: No, No I3DL2(tm) Listen/Src: No, No Sensaura(tm) ZoomFX(tm): No