Linux font rendering tweak that fixes fonts in Firefox.

local.conf

<!-- Save this config as /etc/fonts/local.conf (or similar, related to your distro) and reboot system or run fc-cache -->
<!-- For better font rendering is good to install package freetype-freeworld -->

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
  <match target="font">
    <edit name="antialias" mode="assign">
        <bool>true</bool>
    </edit>
    <edit name="autohint" mode="assign">
        <bool>false</bool>
    </edit>
    <edit name="hinting" mode="assign">
        <bool>true</bool>
    </edit>
    <edit name="hintstyle" mode="assign">
        <const>hintslight</const>
    </edit>
    <edit name="lcdfilter" mode="assign">
        <const>lcddefault</const>
    </edit>
    <edit name="rgba" mode="assign">
        <const>rgb</const>
    </edit>
    <edit name="embeddedbitmap" mode="assign">
        <bool>false</bool>
    </edit>
  </match>
</fontconfig>