The fact that it breaks so often might be a pointer as to why it was removed - sounds like it would be quite a maintenance burden.
However:
I guess really all I want is the option to have a task bar icon for each 'website'
You might be in luck! https://connect.mozilla.org/t5/discussions/how-can-firefox-create-the-best-support-for-web-apps-on-the/m-p/60561
I didn't even know you could use PWAs on desktop. I would've loved that. Too late now I guess.
The PWAs for Firefox extension does a good job most of the time. Just frustrating when it gets broken.
Had it set up on both Windows and Fedora / Debian without issues.
On the one hand, I agree that it’s a step back. In the other hand, I think it’s also partly a recognition that PWAs have not lived up to the promise and are essentially impossible to get right.
I’m sad for the slow languishing death of PWAs, but I’m not faulting FF for pulling the plug once it became clear it was a doomed endeavor.
Are PWAs dying though? I don't think they are. They are still very popular and I use several every day.
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