Incorrect behavior "Scrolling" in Firefox for 300k+ items

[kudryavtsevmd]

Reproduction

Use StackBlitz to reproduce issue: https://stackblitz.com/edit/angular-k6ntqn

Steps to reproduce:

1. open https://stackblitz.com/edit/angular-k6ntqn in the Firefox 68.0
2. scroll to the bottom
3. The bottom items (after 178956) is rendered but not visible

Expected Behavior

visible bottom items

Actual Behavior

the bottom items not visible

Environment

• Angular:
• CDK/Material:
• Browser(s): Firefox 68.0
• Operating System (e.g. Windows, macOS, Ubuntu): macOS

[jelbourn]

I suspect this has to do with the secret limits different browsers have on element sizes.