Tiny extension to force YouTube embeds to allow fullscreen.
Works by setting allowfullscreen on the iframe and reloads it.
NOTE FOR BRAVE: Since unsigned extensions cannot be added, you must extract the ZIP file and load it as "Unpacked".
To install go to chrome://extensions, and enable developer mode. Download the CRX file from the releases, then drag it from your downloads to your browser. Click "add".
Go to about:debugging#/runtime/this-firefox, click "Load temporary addon", select the ZIP file from the releases. You will need to enable permissions for the addon to work.