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Summary

When using the Spotify Web Player in Firefox, Bluetooth audio devices disconnect whenever the playback position changes (automatic track transition or manual seek). The issue does not occur in Google Chrome or other media applications.

Environment Firefox Version: 153.0.1 (64-bit, Release) Operating System: Windows 11 Home 25H2 (Build 26200) Laptop: Lenovo ThinkPad E14 Gen 5 (AMD Ryzen 5 7530U) Audio Backend: WASAPI Graphics: WebRender Bluetooth Device Tested:

• Google Nest Mini (Bluetooth mode)
• boAt Stone 1010 (same behavior)

Problem Description Spotify Web Player starts playing normally through a Bluetooth audio device.

However, whenever:

• the current song automatically changes to the next track, or
• I manually seek within a song (forward or backward), or
• I manually switch to another track,

the following happens: 1. Spotify continues playing (the progress timer keeps increasing). 2. No audio is heard after the track transition or seek. 3. The Bluetooth device remains connected for approximately 15–18 seconds without receiving audio. 4. After about 15–18 seconds, the Bluetooth device disconnects automatically from Windows.

The Bluetooth disconnection appears to be a consequence of Firefox no longer sending audio after the media transition.

Expected Behavior Audio should continue immediately after:

• automatic track changes,
• manual seeking,
• or switching tracks,

without interrupting the Bluetooth audio stream or disconnecting the Bluetooth device.

Actual Behavior

• Spotify playback timer continues.
• No audio is produced.
• Bluetooth audio stream becomes silent.
• Approximately 15–18 seconds later, the Bluetooth device disconnects.

What I Tested Works correctly

• Spotify Web Player in Google Chrome
• VLC Media Player
• General Windows audio playback

Fails consistently

• Spotify Web Player and youTube web in Firefox 153.0.1

The issue is reproducible with multiple Bluetooth audio devices, indicating it is not specific to a single speaker or headset.

Additional Observations

• Opening other Firefox tabs or using other applications does not disconnect Bluetooth.
• The issue only occurs when Spotify and YouTube changes its audio stream (track transition or seeking).
• Bluetooth remains stable while audio is continuously playing.
• The disconnect only occurs after Firefox stops outputting audio during a track change.

Firefox Information

• Audio Backend: WASAPI
• Graphics Compositing: WebRender
• Hardware acceleration available
• No crashes reported

Steps to Reproduce 1. Connect a Bluetooth speaker or headset to Windows. 2. Open Firefox. 3. Open Spotify Web Player. 4. Start playing music. 5. Wait for the next song to start automatically, or manually seek forward/backward or switch tracks. 6. Observe that audio disappears immediately. 7. After approximately 15–18 seconds, the Bluetooth device disconnects automatically.

Frequency 100% reproducible on my system.

I was watching some German video (not on YouTube) and needed the subtitles translated into English. The translation itself was great, but as the video went the subtitles were switching from original language to translated, making it almost impossible to read them. The subs are fine when I press 'pause', but pressing it all the time in the moment of a long dialogue for example is inconvinient. I wonder if there's a way I can fix it myself in the browser's settings, or if it's a bug that will be fixed in future updates

I usually watch videos on Firefox on Stan - https://www.stan.com.au/account/login - with no problem on Debian. Just wondering if this is a fault with Firefox on FreeBSD, so I know where to go looking for the problem. Other outlets have sub par performance, also, such as YouTube, where the video comes up but plays like it's operating at one frame/5 seconds, with no sound. Thanking you for any time and trouble.

Not limited to youtube

All videos on any site will load properly however they will not play. Can skip around and see frame by frame but the video will not play

I think everyone knows how to get out of full screen mode by now, so can you either remove it or let us disable that little box that always shows when you go full screen for a video?