i use firefox with a lot of extensions, making the shortcut widget with the built-in add to home screen function won’t work because it’ll open the site with extensions disabled.
i’ve managed to make it work better by making the shortcut with internet disabled which opens the link in the actual firefox app but that gives the shortcut app a generic icon which looks bad.
i’ve searched around and there are apps that make shortcuts but no luck finding a foss one.
Maybe I don’t quite understand, but is Firefox focus what you’re after? It’s my default browser. I also have Firefox with extensions installed which I use for my other stuff.