A while ago I've installed some fonts on my laptop which I've needed for some graphic design. Soon I found out that fonts on Firefox are kinda broken. It seems like the default fonts are changed, some words on some websites look different, looking a bit like one of the fonts I've installed on my device. I've checked the default fonts, they're still the same, I've even changed them to custom ones, but same (from ''Default (Times New Roman)'' to ''Times New Roman''). I've traced my steps back as best as I can and deleted the fonts I've installed, but it's still the same. And it's not any of the extensions, I've disabled them all and it's still like this. Attached is a screenshot from online Xiaomi store which I've looked at today, a solid example. All the letters should looks approximately like "Mi Automatski kišobran", but it's clearly visible other letters below are widened and some are hollow.