Tuesday, July 14, 2015

Firefox & Antialiasing

Firefox is the only browser that continually annoys me with its 'liberal' reading of my fontconfig configuration. I don't use Firefox as my primary browser so when I need to run it to test some new API hotness I usually cry of frustration.

Take fonts for example. In ~/.config/fontconfig/fonts.conf I have this:


  <!-- antialiasing is off for truetype fonts -->
  <match target="font">
    <test name="fontformat">
    <edit mode="assign" name="antialias">


that allows me to have any local TT font rendered (by a program that abides the fontconfig rules) w/o antialiasing. Webfonts, that a browser downloads, in 99.(9)% cases don't come in TT format, so any web page that uses them renders w/ antialiasing as usual. Such a trick works flawlessly w/ Chrome but fails w/ Firefox.

A week ago a nightly version (how they call it, 'mozilla-central'?) suddenly started to behave like Chrome but the surprise didn't last very long: today, simultaneously w/ a never-ending Adobe Flash brouhaha, they broke the font rendering again.

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