[Preconditions]
Make sure WebRender is enabled in about:support under Graphics
If it is not enabled by default, go to about:config and set gfx.webrender.all to true

[Affected Platforms]
Windows 10
Ubuntu 20.04

[Affected Versions]
Firefox Nightly 84.0a1
Firefox Beta 83.0b8
Firefox Release 82.0.2

[Steps To Reproduce]

1. Open Browser
2. Navigate to: https://bug1442915.bmoattachments.org/attachment.cgi?id=8955810
3. Hover cursor over the grey flip-box
4. Check the clearness of the text

[Expected Results]
The text should be clear

[Actual Results]
The text is a bit blurry when WebRender is on

[Note]
I think the severity of this issue should be S3

Can you supply your about:support from nightly? Thanks!

Specifically on Windows 10 with nightly.

Lee, is this familiar?

Any chance this is related to those font issues you were looking at?

Andrew, this seems somewhat like a potential snapping issue? If you look at the "ON" text, it shows that the bottom is for some reason being clipped, and given the extra linear filtering applied, it would seem like the lookup into the glyph texture is offset by a fractional offset from what is actually expected.

Attachment doesn't seem to load, but WR is shipped everywhere now anyway.