YouTube Vids Posted Have No Sound

Just now playing the videos in the 80s music thread the sound has been lost. Playing the same vids on YouTube the sound is back. Has some Mod accidentally disabled the sound from videos?

Are you sure you don’t have sounds muted for the SDMB page?

How would I turn this off?

What browser are you using?

Firefox. It was working perfectly until about 2 hours ago.

It seems to be a Firefox issue.

Right clicking a tab gives you the option of muting that tab.

Thank you very much. I don’t know how I muted it in the first place but this solved my issue.

I just learned (by right-clicking on @naita’s advice) that Chrome has the same feature. Who knew?? Not I.