topic Firefox stops any audio playback when DP monitor goes to sleep in Discussions

Firefox stops any audio playback when DP monitor goes to sleep

hoanganhbmt — Tue, 20 Jan 2026 09:40:41 GMT

I'm experiencing the following issue: when my monitor automatically goes to sleep after 5 minutes (as I've set it), all audio playing in Firefox stops. Initially, I thought it was due to FxSound. I searched the FxSound forum and found this article (https://forum.fxsound.com/t/fxsound-stops-any-audio-playback-when-dp-monitor-goes-to-sleep/4962), which perfectly describes my problem. To verify, I tried playing music in Chrome and turning off the monitor, and surprisingly, the music continued playing. This means the problem is coming from within Firefox.

I'm using Windows 11 24H2 + Firefox 147.0.1 + FxSound 1.2.5.0 + nVidia 8.1.969.0 + Monitor connected via DP cable + Audio cable plugged into the motherboard's audio port.

I hope there's a solution, as I frequently use Firefox and don't want to open Chrome just to listen to music.
All contributions are welcome!

Re: Firefox stops any audio playback when DP monitor goes to sleep

siffemcon — Wed, 21 Jan 2026 00:35:05 GMT

You could file a bug for that at https://bugzilla.mozilla.org/enter_bug.cgi/.

Re: Firefox stops any audio playback when DP monitor goes to sleep

hoanganhbmt — Wed, 21 Jan 2026 01:08:04 GMT

Thank you for the instructions, I will do it now.

Re: Firefox stops any audio playback when DP monitor goes to sleep

franticvike — Sun, 01 Feb 2026 21:34:25 GMT

Just chiming in to say I've got virtually the exact same problem, but on windows 11 23H2. Interim solution seems to be to disable monitor off in power management, which is less than ideal.