Web app for linux version of FF?

Firefox Development
1

In the past (about 4 years) we were able to test the web apps with the linux version of FF.

Then Mozilla abandoned this feature.
This feature reappeared with the Windows version of FF.
Why not reintroduce this feature with the Linux version of FF?

Thanks

2

It’s already done in FF150!

3

Glad to ear this.

Thanks

4

I got FF 150 there is no web app.

I ask for the qestion for Linux FF not Ms windows.