NEW EXTENSION The only Firefox extension that not only disables the YouTube video but also blocks it. The best extension to reduce the use of CPU and GPU, save bandwidth and hide NSFW content. Works on YouTube, YouTube Music, YouTube videos embedded in sites and YouTube for mobiles. FEATURES (ALL OPTIONAL):

Blocks the video keeping only the audio
Hides the video thumbnails
Hides the images of channel/user avatars
Hides various other images
Skips the ads before they play
Allows background play (on YouTube for mobiles)

Separate options for YouTube, YouTube Music, and YouTube videos embedded in other sites. You can enable/disable the extension for all tabs or for specific tabs. Extra options:

Hides the thumbnails and various other images in Google search when you search for a song or a singer
Quick access buttons: two extra buttons on YouTube in order to hide the thumbnails and block the video quickly without using the popup window

Notes:

Live YouTube videos are hidden but not blocked
If you have enabled the features 1, 2, 3, 4 and 5 the images are not only hidden but also blocked saving more bandwidth

The code of the extension is now available on GitHub The extension does not collect any kind of user data. The user options are stored locally in the user's browser. Date of release (on Chrome Web Store): 02/10/2019

Última versión

Versión 1.2.2

Versiones antiguas

Versión 0.0.9

Versión 0.0.8

Versión 0.0.0.4

Versión 0.0.0.2

Versión 0.0.0.1