Panorama doesn't quite do that, at least not with that affordence, but it's close: https://addons.mozilla.org/en-US/firefox/addon/panorama-tab-groups/ https://a

Panorama doesn't quite do that, at least not with that affordence, but it's close: https://addons.mozilla.org/en-US/firefox/addon/panorama-tab-groups/ https://addons.mozilla.org/en-US/firefox/addon/panorama-tab-...