I really like using PWA’s but FF does not allow them. I have seen a PWA extension but it requires a whole bunch of Software be added to achieve it.
Is there any other solution without resorting to a Chromium based browser ?
No, because they dropped official support for PWAs in 2021.
In fairness, they never had official support in the first place, what was in Firefox then was a very rudimentary implementation behind an about:config flag.
I’ve looked and haven’t found any options. I’m a macOS user, excited to see Apple embracing it for Safari finally, so maybe it will be coming to other WebKit browsers in the near future.
Yeah, I’m also hoping that Apple’s implementation can nudge Mozilla with adding native PWA support, especially given Apple’s history with the web.