Really great idea. I have tried some different browsers. It would be awesome if Firefox got inspired by how Vivaldi do tabs with sub-tabs. It works so well, especially on Android.
This idea started back in 03-01-2022. Mozilla will never bring back PWA again. So many users that want to use Firefox, but can't because of lack of or half baked features such as Collections that are not sync etc., it is abandon/not choosen...such a ...
