Firefox audio does not work (only browser affected)
Issue description
Audio does not work only in Firefox.
Audio works correctly in other browsers (Chrome / Edge) and in… (ulteriori informazioni)
Firefox audio does not work (only browser affected)
Issue description
Audio does not work only in Firefox.
Audio works correctly in other browsers (Chrome / Edge) and in all local applications.
I have already performed all standard and advanced troubleshooting steps:
verified correct audio output device (Realtek speakers)
checked per-application volume mixer
tested with a brand-new Firefox profile
used Firefox “Refresh” (factory reset)
full uninstall and clean reinstall
started Firefox with no add-ons, no sync, no import
system reboot
Firefox remains completely silent even in a clean, default state.
System information
Windows 10 22H2
Acer Swift 3 laptop
Intel i7-7500U
Realtek audio (working correctly with other apps and browsers)
This appears to be a Firefox-specific issue related to Windows audio handling (WASAPI / Media Foundation), since the system audio stack is otherwise functioning normally.
I would like to know if this is a known issue and whether there are specific Firefox logs or diagnostic options that can help identify the cause.