nativefier VS PWAsForFirefox

Oh by "Web Environment" you mean "my machine" lol!

I already got caught by this - a https://github.com/nativefier/nativefier app wrapping Youtube Music doesn't work, because Google detects somehow that you are not using a trusted browser and refuses to serve.

AFAIK there's only nativefier and peppermintos' ice.

Install Nativefier from Terminal using the command npm install -g nativefier

Something like nativefier perhaps?

It's still not quite the same as Chromium webapps, which are just isolated windows in the same core process -- FFPWA spins up entire other instances of Firefox -- and in effect operates more like Nativefier (with Firefox instead of Electron/Chromium)

is Electron considered a browser? cuz Nativefier is what i use

While Mozilla deserves some heat for abandoning official support of PWAs, for my use this add-on has filled the role just as well: https://github.com/filips123/PWAsForFirefox

You should check https://github.com/filips123/PWAsForFirefox and Firefox Container Manager extension :)

There is an extension + companion app to do native-looking PWAs with Firefox, but it requires separate user profiles for each PWA (which means running separate Firefox instances).

There is addon that fixes that: https://github.com/filips123/PWAsForFirefox

Firefox does not offer this feature natively so you have to use a 3rd party utility to do it, and even those aren't super obvious. I've used FirefoxPWA in the past and it seems to work alright.

They decided to stick their head in the sand on that one for some reason. I use this as a replacement. Here's the link to the extension itself.

Have you tried the support site listed for the extension?

Open Instagram, pop the window out or create an Instagram webApp.

Can use an extension for it right now. https://github.com/filips123/PWAsForFirefox