White text is rainbow colored in Firefox

[coldspark]

I have the weird problem that white text is rainbowish colored in Firefox if its size is below a certain value. No issue in Chrome, I just tested it.

Here is a picture

Same text in Chrome

I have found nothing about it in the Arch Wiki. Any ideas why this happens?

[ishaan2479]

these might help:
https://support.mozilla.org/en-US/questions/1127449

https://superuser.com/questions/606561/firefox-subpixel-rendering-on-ubuntu

[coldspark]

Thanks, disabling sub-pixel rendering in Plasma font settings solved it after restarting Firefox. But shouldn’t sub-pixel rendering not actually improve the quaility?

[steanne]

you don’t need to disable it, you need to make sure it’s in the right order for your monitor.

[coldspark]

No, all orders make it look colored. It is best, when turned off.

[anon59284200]

Then you need to use the lcdfilter.

https://wiki.archlinux.org/title/Font_configuration