[Bug]: Sounds not working on default pages in Firefox Developer edition

[S2009-dev]

What happened? If applicable, add screenshots to help explain your problem.

Hi,
I notice that the sounds do not work for the "system" pages of the browser (new tab, about:* etc) because the extension does not have permission to access them.
Sincerely

What did you expect to happen?

Have sounds in adress bar, etc

Reproduction

So I looked in the settings, but there are no options allowing this, and I have already authorized everything.

System Information

Windows 10/11

Browser Information

Firefox Developer Edition v137.0b1

Relevant log output

Additional context

I do not use private browsing.