Infinit Upscrolling not working in Firefox

Hello :) I love this project so far, but I am having some issues with it in Firefox.

Infinite scrolling-up doesn't bounce back on Firefox 84, even when I open the demo in Chrome and Firefox, scrolling-up doesn't work in Firefox but works fine in Chrome.

Here is it in our project: https://www.dropbox.com/s/4okfsbanfj2xlfg/output.gif?dl=0

Here is my configuration:

<div infiniteScroll
   [infiniteScrollUpDistance]="2"
   [infiniteScrollThrottle]="50"
   [alwaysCallback]=false
   [scrollWindow]=false
   (scrolledUp)="onScroll()">
...
</div>

I didn't create a live demo, because it even happens in the demo. This is really annoying since my project needs no to be compatible with Firefox.

Your Environment

Version used: 10.0.1 (Angular version 10.2.0)
Browser Name and version: Firefox 84.0.2 (negative) and Chrome 87.0.4280.141 (works)
(Optional) Operating System and version (desktop or mobile): Linux Mint 20
(Optional) Link to your project: not public (yet maybe)

orizens / ngx-infinite-scroll

Infinit Upscrolling not working in Firefox #376

Your Environment