Prevent VIMEO video from being downloaded from my site through Chrome or Firefox extensions

Hello,

i want to block or make harder to download Vimeo videos from a website

I will give you an url of the website containning the VIMEO video to protect:

https://pr.learnybox.com/bienvenue-strategie-4-etapes/

I can lock/block the video to a specific domain but i cannot protect the video from major chrome/firefox extensions.

Here the link of the video which is blocked to a domain "pr.learnybox.com" :

https://vimeo.com/365723762 (Normally you will not be able to watch this video )

You can watch it only into this page : https://pr.learnybox.com/bienvenue-strategie-4-etapes/

Thank you