Why do so many songs come at once when I open a website?

I don't know if there's anything wrong with my laptop, but lately when I go to any website, for example. Youtube or another website, then a lot of songs jump up and all at once.

Adjust your settings in the browser - deactivate autoplay of media content.

In addition, maybe use ad blockers.

So this is not just in this browser, I always use Firefox, and when I go to Chrome I get the same problem

Both have their own configuration, must switch off in both.

In the settings under "Data protection and security" you will find the "Website settings" - here you can switch everything on / off globally - popups should be off, Flash better ask first, set the sound and midi as you like…