Youtube only Audio-Mode – For those who want to listen only audio on youtube, without video:

• Music Mode for YouTube™ (chrome) : https://chrome.google.com/webstore/…
• Audio Only for YouTube™ (chrome) : https://chrome.google.com/webstore/…
• Audio Only for YouTube™ by Sevina (firefox) : https://addons.mozilla.org/en-US/firefox…
• Youtube Audio by Animesh Kundu (firefox) : https://addons.mozilla.org/en-US/firefox…

This extensions it is very useful and beneficial when the available bandwidth is too small and there are interruptions.

Compared to landline broadband internet, it is even more useful when using mobile internet, that is usually limited, expensive and of poor quality … and you don’t want all the expensive traffic in your subscription to be consumed by listening music on youtube.

Warn: Be careful when using add-ons or extensions in browsers. It has been proven many times that they can become dangerous when they fall into the hands of malicious people!

Bonus: YouTube videos without Ads and YouTube without Stopping

The solution is valid only for those who use youtube web (via browser), not for those who use the Youtube app on their phone / tablet!