1850374 - [esr102] Reddit page flashes after scrolling

Status: RESOLVED DUPLICATE of bug 1799111

(Core :: Layout, defect)

Description

[Alexandru Trif, Desktop Test Engineering [:atrif]]

Attachment: glitch_reddit2.gif

Found in

• 102.15.0esr

Affected versions

• 102.15.0esr- build2

Tested platforms

• Affected platforms: macOS 12, macOS 13 arm, Ubuntu 22, Windows 10x64,
• Unaffected platforms: none

Steps to reproduce

1. Open the Reddit page and scroll down.

Expected result

• No glitches are displayed.

Actual result

• Glitches are displayed on the page.

Regression range

• It seems that esr 102.14.0 is also affected. I will search for one ASAP.

Additional notes

• Attached a screen recording.
• Note that only esr 102 is affected. Esr 115, 117.0, and the latest nightly are not.
• Please change the component if needed. Thank you!
• S2 because it happens on all platforms and on the Reddit page.

Comment 1

[Alice0775 White]

I can reproduce this even on Firefox91esr,78esr.
So, this appears to be caused by a website changing their code, not a Firefox regression.

Fixed range is as follows:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=d9a1ff9822a2c826c771e61bfc64ee8ade0c65ca&tochange=ec2ad590b1485ab7d895d3d8ba9434739f8dd603