It usually does not change the quality.
It shows for example "auto 1080p60" but it does not actually use it, until I manually select "1080p60".
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Previous rating:

Works great and it does not require to "access-your-data-for-all-websites", which is as follows:

https://support.mozilla.org/en-US/kb/permission-request-messages-firefox-extensions#w_access-your-data-for-all-websites

The extension can read the content of any web page you visit as well as data you enter into those web pages, such as usernames and passwords.

좋아요

wow

foarte buna

Ottimo