To top up your comment, you can get the permissions required for each extension in Firefox for Android.
Extension Manager --> click the extension --> Permissions
In the case of this specific extension, it requires access to the data of only 3 domains :
youtube.com
youtube-nocookie.com
vimeo.com
Many other extensions are far worst in regards to permissions that this one.
It is a good habit to check what are the permissions required before using any extension or phone apps for that matter.
To top up your comment, you can get the permissions required for each extension in Firefox for Android. Extension Manager --> click the extension --> Permissions
In the case of this specific extension, it requires access to the data of only 3 domains :
Many other extensions are far worst in regards to permissions that this one.
It is a good habit to check what are the permissions required before using any extension or phone apps for that matter.
Thanks for the reminder!