Would be nice if Firefox supported PWA Shortcuts like Chrome does.
Example:

"shortcuts": [{
"name": "Notebook",
"short_name": "Notebook",
"description": "Latest post from Hexandcube's notebook",
"url": "/notebook",
"icons": [{
"src": "/assets/img/icons/android-192x192.png",
"sizes": "192x192"
}]
}]
Depends on #10038 / mozilla-mobile/android-components#1832
Currently PWAs in Fenix are just shortcuts that open Fenix in a chromeless way. To have this kind of shortcuts, I think PWAs need to be installed as apps through the WebAPK mechanism.
However, it's been a year and a half or two since Google introduced the WebAPKs mechanism in Chrome saying it will be soon available to other browser. The thing is they never did and at this point I think they put it in very-low-priority state and I doubt they will ever do it if they aren't directly contacted.
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Currently PWAs in Fenix are just shortcuts that open Fenix in a chromeless way. To have this kind of shortcuts, I think PWAs need to be installed as apps through the WebAPK mechanism.
However, it's been a year and a half or two since Google introduced the WebAPKs mechanism in Chrome saying it will be soon available to other browser. The thing is they never did and at this point I think they put it in very-low-priority state and I doubt they will ever do it if they aren't directly contacted.