[SOLVED] Disabling system sounds

[Orflovir]

I'm trying to disable all system sounds. After looking for a simple "disable all system sounds" setting, I found that the only way seems to be to turn them off one by one. I went into System Settings -> Notifications -> Applications and then disabled all sound effects for each one individually.

However, I can't seem to find a way to disable the sound effect that accompanies the warning for closing Firefox with multiple tabs open. I would still like to get the warning (I have Firefox set not to remember any tabs between sessions, so this warning helps prevent accidents), but I don't like the sound effect.

Any suggestions on how to disable this last remaining sound effect? Am I just missing something in the settings?

[Snowhog]

You could have gone into System Settings > Audio and set Playback Streams > Notification Sounds to 0% (mutes notification sounds). As to Firefox and its ilk, it/they use the GTK+ toolkit, whereas as Kubuntu uses the QT toolkit. That usually means that controls for GTK+ developed applications are built into the application and must be used to affect the application. So look in Firefox for a notification setting.

[Orflovir]

Looking into that setting, I now remember setting this to 0% earlier, when I just started using Kubuntu 21.10. After upgrading to 22.04, I started hearing notification sounds again, but had forgotten all about muting them before. It was still set to 0%, but for some reason the system ignored this setting after updating.

The first solution to try when dealing with any technical problem is turning it off and on again, so I unmuted and muted again, and it did the trick!

All notification sounds are now muted, including the one from Firefox.

Firefox itself seems to only have a setting to disable the warning entirely (which I didnt want to do) instead of muting it, so I'm happy this solution worked.

Thank you!