PWA install pop-up on Firefox


I’m using Vaadin Flow 14.1.3 in a spring boot project and my problem is the PWA install pop-up only shows up on chrome browser.
I have tested Firefox (version 73.0.1 64bit) and Safari on IoS and nothing happens regarding installing PWA app on those.
does anybody have faced the same issue? is there any particular measure to take to enable the same feature on browsers other than google chrome?