(Bug report) Firefox fails to use correct icon set

[GideonWolfe]

Description

I've been using Trilium Next for a few months now and have been loving it so far. I've been using it on multiple desktops (Windows, Arch Linux) and browsers (Firefox, Edge, Chrome) and haven't had a UI issue so far.

However, I have now noticed an issue with the icons after installing NixOS on my laptop. In Chromium, the icons look as expected

However, when I use Firefox (my preferred browser), I am seeing a completely different set of icons

Some of the icons are maintained, but others are different. What is the configuration difference here?

TriliumNext Version

0.90.4

What operating system are you using?

Other Linux

What is your setup?

Server access only

Operating System Version

NixOS 24.11

Error logs

No response

[eliandoran]

@GideonWolfe , I am using Firefox as well and have never had this kind of issue.

Can you confirm whether you use a font override or custom stylesheet? Is the issue reproducible with the default theme as well?

[GideonWolfe]

@eliandoran, I am using many custom options, they are all defined here

https://github.com/GideonWolfe/nix/blob/main/configs/users/gideon/configs/firefox/firefox.nix

[eliandoran]

@GideonWolfe , could you also provide the Trilium theme you are using?

[GideonWolfe]

@eliandoran no theme is applied besides the color changes applied by https://github.com/darkreader/darkreader

[Nriver]

Launch a new Trilium server instance and open it in Firefox's incognito mode to check if the icons display correctly. This helps rule out any side effects from Trilium or browser plugins.

[GideonWolfe]

@Nriver I don't have time to spin up an entire new instance now, I'll do that when I can. I'll also add that when I view the server on Firefox on other systems (ie Arch Linux or Windows), the icons render correctly. So it would seem to be a system font configuration issue or something along those lines?