The extension does not retrieve ANY information about your account or something else.

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When 1080p is possible, the icon changes.
There's no need to open and close it several times, in fact when you open it it fetches the 1080p from outside youtube, it takes a little time if the server is available for it to process the request.

(Youtube separates video and audio for formats above 1080p so there is no direct download, unless you decide via the extension settings to allow it so they are added in the drop-down menu)

En la versión anterior de la aplicación, aparecía una ventana emergente, que se ha eliminado. Youtube limita las descargas, esto se ha corregido parcialmente utilizando un servidor externo. La traducción puede ser incorrecta, ya que no hablo su idioma.

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Thanks for your feedback 🙂

Your suggestion was implemented on 15/02/2023. I hope you appreciate it 🙂

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Unfortunately, Youtube often limits the bandwidth on their server.

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It's probably a video containing a copyright.

Thanks for your feedback 🙂