Requesting support for firefox

**Is your feature request related to a problem? Please describe.**

I just tested this script on my wordpress site ( https://www.lyka.stream/ ) and it works only in chrome; would it be possible to support firefox since it seems to support prefetching? See: https://caniuse.com/link-rel-prefetch

**Additional context**
Firefox:

Chrome:

As you see, chrome works ideally, but firefox does not work

I am using Firefox version 101