Не работает

see below link after installing the add on the video play back still runs on its own:
https://www.businessinsider.com/guides/tech/how-to-clear-cache-in-windows-10

Purtroppo non elimina i video autorun, bisogna sviluppare qualcos'altro...

Useless and unnecessary. The media autoplay block feature is already in Mozilla. I was hoping it could block auto-loading the videos such as in the news sites; they don't start playing but they auto load few seconds. This feature should be in the browser by default to save data.

Does nothing. There was no indication, such as any icons or context menu items to indicate it is installed.