[Updated] Is sound OK for you here?

[space-time]

https://www.amazon.com/dp/B073SQYXTW/

EDIT:

Please copy that URL.

Please quit Firefox.

Please open Firefox and paste that URL.

Many Many thanks.

[clay]

sounds fine here...

[space-time]

now it's bad on headphones too...

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OL, more testing. I reset PRAM, started the machine, played several songs in iTunes, sound is fine.

I play this damn video, sound is bad (like a scratched LP). I go back to iTunes, now sound is bad.

Something is definitely messing up my sound.

EDIT: but after a few seconds, iTunes recovers and sound is fine.

Now testing an iPhone...

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13" MBP Early 2011, 10.9.5

Crappy sounds occurs in both Firefox and Safari.

iTunes sounds is fine, after I play this video, sounds is bad in iTunes for a while but it seems to recover.

This happens both in speakers and headphones.

Sound is fine on iPhone SE. Sound is also fine on 15" MBP (same software as 13").

I will try to find other amazon videos.....

[space-time]

OK, more progress. when I said it happened in Safari earlier, that was because I had Firefox open.

After more troubleshooting, this only happens in Firefox. As long as Firefox is open and this page is loaded, even if I do not play the video, the sounds is bad (iTunes, Safari, etc). Firefox messes up the sound card when this page is loaded, even if that video is not playing.

EDIT:

EVEN MORE STRANGE!

If I play iTunes and I open that page in Firefox Private Window, sound in iTunes is fine. if I open that page in Firefox Normal Window (not private), sound is crappy.

Someone is spying on me.

[NewtonMP2100]

....can you hear me now.....???

[S. Pupp]

I swear -- the number of bizarre bugs in MacOS/iOS is growing.
My Calendar alerts on my iPhone 5s are chiming at the wrong times. By that, I mean an alarm set for 11am will ring at 11:14am, or 11:39am, or 12:53pm. What sort of programmers are being churned out by schools these days?

[Sarcany]

S. Pupp wrote:
I swear -- the number of bizarre bugs in MacOS/iOS is growing.

I wouldn't be so quick to blame the OS.

I've seen behavior like this and worse -- making the mouse/cursor jumpy, causing the screen to go blank or flicker, making sound drop-out, causing the entire OS to stall for up to a full minute -- in the new Firefox. Not sure why, but the symptoms often persist for a few seconds after quitting the program. They nevertheless go away shortly after quitting Firefox so it's clearly the cause.

...My guess is that you've updated to Firefox Quantum recently.

Download and run the "extended support release" version of Firefox until they get around to fixing Quantum.

[Article Accelerator]

S. Pupp wrote:
I swear -- the number of bizarre bugs in MacOS/iOS is growing.

Why do you think it's a macOS/iOS bug?

(I don't have any problem playing that amazon video on either device here.)