Page Scroll in Android Firefox

Hi,
When I open the https://labs.vaadin.com/business/accountants page in Android Firefox (68.10.1), I see only ten records and I can’t scroll to the end of page. There is no problem on desktop browsers or Android Chrome.

Is it a bug in Vaadin? (or Firefox?)

Same problem in the Expense Manager demo:
https://expensemanager.demo.vaadin.com/

It looks like it won’t be fixed:
https://github.com/vaadin/vaadin-grid/issues/1231