On Wed, Jun 18, 2025 at 12:26 PM Eben King <[email protected]> wrote: > > Hi, I have Thunderbird 128.11 on Debian 12.11 (Bookworm). Thunderbird > works fine (well, except for trailing spaces) but when I get mail it > plays the new mail sound twice, a few ms apart. Sometimes it sounds > like a flanger effect, sometimes it sound like the kind of echo you > might get in a hallway. Either way, it probably shouldn't happen. Any > guesses as to why it might be? The only reasonable guess I can come up > with is that it plays the sound once when the mail arrives, and again > once it's been filtered and lands in a different folder.
<https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird> And more generally <https://www.google.com/search?q=troubleshoot+sound+thunderbird+site:mozilla.org>. Jeff

