EDIT:
Developers Solution worked like a charm, great extension!
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Currently not possible for me to update to 2.13.3. I tried updating various ways to uninstall and re install the new package but the page on where you update with visual c and the new installer for the package does not get redirected afterwards nomatter what I do.

agora tem versão português Brazil rsrs

For those who are laymen like me in these matters, the GitHub website is not very intuitive, if you use Windows 11 64, please select and download the file named "firefoxpwa-2.13.2-x86_64.msi" and install it normally on your Windows. The developer fails to provide precise guidance for those who don't know exactly how everything works, as these people don't know which extension they should download, but their work is to be congratulated, this PWA tool is excellent..

it is really useful!

Great stuff. Just wanted to leave this note in case current users come here after theirs breaks: The native program has to be manually updated to support the latest Firefox. Go to github - filips123/PWAsForFirefox/issues/611

Every once in a while, newly pinned extension is not showing in the title bar. it does show in the toolbar, which is hidden.
to make it worse, it is also hidden in customization page, so it's impossible to move it in any way. also, because it weirdly requires long press to show the extensions, it's then impossible to trigger on the touchscreen.
closing all the instances will help, but, why not show the the address bar along with the toolbar in the customization page?

Great add on and works perfectly fine for me.
I would appreciate if the PWA can safe login cookies, so that I don't have to type my password every time I start the app.

I only wish it was made simpler.

Compare with Apple's web apps, which strike the best balance between reasonable customization and simplicity (i.e. I don't need any of the profile configurations and what not, I just want a working app that will work always; that will adjust to my system and blend in nicely with it, from showing the right (shape of the) icon to behavior).

Right now some web apps, after being closed, don't work. I have to relaunch them. And not all pages can be made to web apps.

This is an impressive addon. This functionality is present in chromium/chrome based browsers but sadly lacking in Firefox. Working well so far on Windows 10.

Work really well, even better than on Chrome, because you can customize a bit the PWA (like adding tabs for example, works really well to replace electron app on Linux)

Professionally build extension that brings PWAs to Firefox! Easy set-up and extensive user guide. Congrats to the developer!