1725995 - Firefox 91 selects wrong font on Linux

Status: RESOLVED WORKSFORME

(Core :: Layout: Text and Fonts, defect)

Description

[trist.daniel]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0

Steps to reproduce:

1. Running Firefox 91 on Archlinux 64 bits, official Firefox package (package version 91.0-1).
2. Fontconfig is correctly configured, and for example running the command fc-match "Fira Sans" in a terminal outputs FiraSans-Regular.ttf: "Fira Sans" "Regular", showing the font was found in the filesystem. Fontconfig also recognizes the Verdana font, and 'sans-serif' resolves to the Fira Sans font.
3. In Firefox, default fonts are configured correctly in the Settings > Language and apperance panel, in my case with "Kreon" for serif, "Fira Sans" for sans-serif and "Consolas" for monospace.
4. Open https://news.ycombinator.com/news in a tab.

Actual results:

Firefox 91 displays the text on this website (which uses the CSS rule font-family: Verdana, Geneva, sans-serif;) using the "C059" font, which is installed on the system, but isn't the font the website requested, nor the default configured sans-serif font.

Expected results:

Firefox 91 should have selected the Verdana font, or the Fira Sans font as a sans-serif fallback. Firefox 90 behaves correctly.

Comment 1

[Thomas D. (:thomas8)]

Daniel, why are you closing your own bug as wontfix?

Comment 2

[trist.daniel]

Well the bug was not present in Firefox 92 anymore, so I assumed it had been somehow fixed (intentionnally or not). I closed the issue to avoid polluting the tracker, and resolved as WONTFIX because (if my memory serves) I don't have the permission to resolve as FIXED.