Affected versions

• Firefox 68.0 RC
• Firefox 69.0b6
• Latest Nightly 70.0a1

Affected platforms

• Aarch64 Windows 10

Steps to reproduce

1. Start Firefox
2. Make sure Fx is not maximised
3. Visit https://www.gamearter.com/game/fighter-aircraft-pilot/
4. Click Continue Game
5. Skip the add
6. Click Continue as Guest

Expected result

• Image in has no artifacts

Actual result

• Image with plane has multiple blinking artifacts

Regression range

• This is not a recent regression, 68.0 RC is also affected. I will investigate further if this is an old regression or not.

Additional notes

• Attached is an image with the bad behavior.
• I could reproduce this on two identical machines but not on a third.

Bugbug thinks this bug is a regression, but please revert this change in case of error.

After more digging I found out that this is not a regression since even the first official aarch64 build (2018-12-19) is affected by this (in a worse way though).

The priority flag is not set for this bug.
:jbonisteel, could you have a look please?

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That looks like a driver bug to me, honestly.

Hi,

I am able to reproduce this issue on latest Nightly build 71.0a1 (2019-10-18) using Aarch64 Windows 10.

I am able to reproduce this issue on latest Nightly build 73.0a1 (2019-12-11) using Aarch64 Windows 10. The issue is also reproducible here: http://toji.github.io/webgl2-particles/

Change the status for beta to have the same as nightly and release.
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