@appdevsw
Thanks a lot, it worked

So many thanks! It worked!

Thank you!
Now I'm still at work, I will try as soon as I get home.

Many thanks, at least I now know it's a known problem.
I hope too someone can give us instructions.

Since yesterday I can't see the videos on Twitter.
I get the message: The content cannot be reproduced.
I can see all YT videos.
I also tried other browsers and they work fine, I can see the videos on Twitter.
Thanks in advance for the answers