1598879 - add support for the new 'ui-serif' standard font family

Status: UNCONFIRMED

(Core :: CSS Parsing and Computation, enhancement)

Description

[Bill Goldstein [:aja] (UTC-6)]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:72.0) Gecko/20100101 Firefox/72.0

Steps to reproduce:

Add support for the new 'ui-serif' standard font family in Fonts Module Level 4:
https://drafts.csswg.org/css-fonts-4/#ui-serif-def

Comment 1

[Aurora Korjus]

Hey is there a chance this could be worked on? With the updates to "Enhance Tracking Protection" and/or "Resist Fingerprinting" there is seemingly no way for websites to even try to display your default fonts, as ui-serif and similar values ui-sans-serif #1598880 & ui-monospace #1598881 are currently completely non-functional, and setting ex. sans-serif for the value seems to pull "Arial" no matter what you've set your defaults to in the settings.