I just upgraded to MacOs Sonoma 14.3.1, and all of a sudden my "normal" Thunderbird notification sound became an obnoxious, loud sound that I can't stand. I went into Thunderbird sound settings and discover that the incoming mail "play the following sound file" box option is greyed out. It seems like Sonoma wants to do it's own thing... I've tried going into my Mac's system settings, and under "sound," I can choose various alert sounds, but none do anything to change the Thunderbird notification sound. I called AppleCare, and they don't seem to know anything about it yet. I guess more folks need to bring Sonoma notification issues to their attention asap... My question: Is there a way under Thunderbird's (v115.7.1) sound settings to "un-grey-out" this "play the following sound file" in order to overide what the new MacOs is doing? Thanks, Jack