1577265 - UI glitch: Black square in top left

Status: RESOLVED DUPLICATE of bug 1571340

(Core :: Graphics: Layers, defect)

Description

[fsolarv]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

I updated my intel 520 graphic drivers.

Actual results:

When maximized, a block box in the top-left corner of the browser covers the favicon of the first tab.

Expected results:

remove that square!

Temporal FIX: layers.acceleration.disabled = true

https://www.reddit.com/r/firefox/comments/cm3oxt/ui_glitch_black_box_in_the_topleft_corner/

Comment 1

[Timea Cernea [:tbabos][inactive]]

I'm unable to update my graphics driver to the lastest one on my 4600 for now, but will move this over to a component. The reddit thread also mentions enabling Webrender as a fix.
Thanks for the report!