Q: Sierra won't let me play youtube videos

Same with me in Safari, but Firefox still works.  I installed the latest Flash from Adobe but got the same results; Safari NO - Firefox YES.  Apple, we need a fix.

Bob

If you have the "Click to Flash" Safari extension try disabling or removing it.

FWIW, you shouldn't need flash at all on YouTube. They have switched to HTML5.

Yes. The reason I mentioned not needing flash is because it poses a continuing security threat which is why Adobe constantly updates it. It's your computer of course.

Right on the money.  I had "ClickToFlash" as a Safari extension, removed it, Problem solved!

Many Thanks,

                Bob

I have the same issue after installing Mac OS X sierra and after restarting I can view videos from YouTube and Vimeo.

The issue I have was that videos were display but if you press start they will not play.

bobandris wrote:

 

Right on the money.  I had "ClickToFlash" as a Safari extension, removed it, Problem solved!

 

Many Thanks,

                Bob

You're welcome.

Yes, now it is ok. But i was downloading videos from youtube using clicktoflash extension. From safari-develop-show web inspector-other and when i double click this file it was automatically downloading. Now, when i disable clicktoflash extension, i can to download youtube videos. Any solution for that?

I guess the only thing to do would be to check if there's a newer version of clicktoflash, wait for one or use a different browser that has extensions that do work such as Firefox.

perfect  thanks!