igorlogius, hace 11 meses

Hoho … here i go … debugging again … Let’s see …

1. The promodoro clock seems to create an audio element inside its background script, that it uses to output the sound. - pretty standard.
2. And i am not aware of any way to specifically block the audio output of a single addon , via permissions or settings.

So my suggetion would be:

Install an addon that outputs sounds the same way. For example: addons.mozilla.org/…/notify-on-download-events/ and check if audio can be played back with that.

Come back with your results and we continue from there.