YouTube - Bloquear Prévia de Reprodução Automática de Miniaturas e Trailer do Canal

Bloqueia prévias hover de miniaturas YouTube (WebP e vídeo) e interrompe trailers de canal (vídeo + áudio). Mantém barras de progresso, botões de play e imagens estáticas. Sem login ou permissão, executa ao carregar a página.

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Pergunta/Comentário

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Publicado em: 18/03/2026

Hello, the script seems to break watch page. I don't see any static preview there but video starts playing fine. I should note I also use Enhancer for Youtube addon. This is in latest Chrome desktop.

I have temporarily worked around it by only having https://www.youtube.com and https://www.youtube.com/feed/subscriptions in // @match.

Any possibility of a fix? Thanks!

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Publicado em: 24/03/2026
Editado em: 24/03/2026

Hi,

Thanks for reporting the issue.

I've tested it thoroughly on Opera 128.0.5807.77 (latest Chromium core), both with and without Enhancer for YouTube™ enabled. The script is currently working fine for me:

  • Hover preview thumbnails are properly blocked on homepage and subscriptions.
  • On the /watch page, the static preview still appears normally when hovering over the progress bar.

Here are some screenshots for reference:

Watch page (without Enhancer) – Static preview still appears normally when hovering the progress bar:

Watch page without Enhancer

Watch page (with Enhancer) – Static preview still appears normally when hovering the progress bar:

Watch page with Enhancer

Subscriptions page – Hover preview thumbnails are properly blocked:

Subscriptions page

The core of the script feels quite stable right now, so I don’t want to make major changes at the moment.

Could you please try a hard reload (Ctrl + Shift + R) a few times and see if it fixes the problem?

You can also temporarily disable Enhancer for YouTube™ to check if there’s a conflict.

Thanks a lot!

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