Today I received some reports that vertical scroll bar appears while using my apps in FireFox. I investigated and indeed it is true. I have had this issue while I was developing, but in the App I changed Show Scrollbar property to false and it solved the issue. Since I only use Chrome, I never noticed the problem in Firefox. It seems that this property does not work on Firefox and it puts up the scroll bar.
Is there any option to disable scroll bars in Firefox?
How it looks like in Chrome (Good)

How it looks like in Firefox (Bad)

How it looks in PowerApps Web Editor:

If I switch the control to On I can see the scroll bar and it shows in Chrome. So it seems it just does not work when using Firefox Browser. Any workaround or solution?