For some time now Firefox provides visual improvements to font rendering as described on http://opentype.info/blog/2008/06/14/kerning-and-opentype-features-in-firefox-3/. I have seen this work on a Debian Lenny system reading lwn.net. The difference was easily to be spotted with “fi” ligatures. Now how do I enable this on sid? Some first googling revealed that browser.display.auto_quality_min_font_size is involved, but lowering it did not give the better rendering.
Adam Trickett [ Editor ]
I don’t know about SID, but Iceweasel in Squeeze follows the rules as described here:
browser.display.auto_quality_min_font_sizeoption does work.