Just as a notice for anyone who has issues making this extension work:
Using a VPN like Surfshark or NordVPN on your OS/Browser will prevent this extension from properly working if you enable certain settings; in the case of Surfshark, it's the NoBorders settings I believe. This can also be triggered in extreme cases of Adblocking on the OS level by softwares like Adguard if the settings are too strict. You're welcome!