URL: https://figma.com
Browser / Version: Firefox 79.0
Operating System: Mac OS X 10.15
Tested Another Browser: Yes Chrome
Problem type: Something else
Description: Grab/Drag mouse flickers
Steps to Reproduce:
When dragging around, the grab/drag mouse cursor flickers in Firefox.
Browser Configuration
_From webcompat.com with 鉂わ笍_
Thanks for the report, I can see some flicker on Windows on Firefox but I can see it a bit on Chrome too.
URL; https://www.figma.com/file/hkF7BPmjc0s17Viym1z4E5/Untitled

Tested with:
Browser / Version: Firefox Nightly 81.0a1 (2020-07-29)
Operating System: Windows 10 Pro
@cipriansv can you reproduce it on your Mac?
@softvision-oana-arbuzov, I am not able to reproduce the issue.
The mouse cursor did not flicker while I was dragging some elements on the canvas.

Tested with:
Browser / Version: Firefox Nightly 81.0a1 (2020-07-29)
Operating System: macOS 10.15.6
@lolrepeatlol could you please update to the latest Firefox version, and give it another try?
Also, could you try clearing cache/data/cookies, disable Ad-blocker (if available), or use a clean profile (about:profiles), and check again?
Whoops. When I said that, I meant the cursor that appears when one hits the space bar and the hand comes up so you can move around. The normal cursor is fine. Sorry for not correctly explaining my issue.
Anyway, yes, I'm on the latest version being 79, and I tried using a clean profile. Same issue.
Thanks for clarifying this, @lolrepeatlol.
I was indeed able to reproduce the issue as you described it. After pressing the space bar and moving the hand cursor over a figure it flickers, while on Chrome it stays still.
Tested with:
Browser / Version: Firefox Nightly 81.0a1 (2020-07-30), Chrome 84.0.4147.111
Operating System: macOS 10.15.6
Moving the issue to needsdiagnosis.
Most helpful comment
Thanks for clarifying this, @lolrepeatlol.
I was indeed able to reproduce the issue as you described it. After pressing the space bar and moving the hand cursor over a figure it flickers, while on Chrome it stays still.
Tested with:
Browser / Version: Firefox Nightly 81.0a1 (2020-07-30), Chrome 84.0.4147.111
Operating System: macOS 10.15.6
Moving the issue to needsdiagnosis.