Rated 1 out of 5 stars
I have Firefox 3.6.6, installed this add-on and it didn't work. All the options to test the sounds were disabled except the 'Feed Discovered' and 'Download Completed', but they didn't make any sounds when I pressed the Test buttons.
I also tried by installing version 1.2.1 to see if there was a bug with this one, and same problems, no sounds whatsoever.
I've been trying to find a replacement for 'Popup Sound' and thought this add-on would do it, but this add-on didn't work for me.