[gentoo-user] In Any Build of Firefox I Make it Uses a Poor Method of Downscaling

[TheXzoron]

This a repost from the forums in an attempt to hopefully reach someone
who only reads one medium regularly
https://forums.gentoo.org/viewtopic-p-7921188.html
but I still haven't managed to find the reason why my build chooses to
use a bad downscaling method.