It fulfills its purpose, but it would be better if the add-on evolves to have full control functionalities of any video, regardless of whether it is pinned or not, or if it is from another tab. Similar to the one that exists natively in Google Chrome.

this expansion is great. It would be godlike if the play control was carried out not on the active tab, but on all together. maybe this extinction will help to do it: https://addons.mozilla.org/firefox/addon/sound-control/
https://addons.mozilla.org/ru/firefox/addon/media-controller/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search
https://addons.mozilla.org/ru/firefox/addon/sloth_music_controller/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search