...in Ubuntu 11.10. Wher do I change that? In 10.04 it is under System-->Preference-->Appearance but under Appearance in Unity there are nothing about fonts..
It seem Ubuntu desktop has decided it will override font choice in printing and applications.
I am using Firefox, and to get FF fonts to where I want them - I have to tweak the desktop etc, fonts.
I am not trying to use a non-system font, just what came with 11.04. Normally, if the font is in the system, the application will use the font of choice.
Caveat: I'm a bit demanding about font rendering. And this is very much in the weeds.
I've noticed a subtle difference in the appearance of fonts between 14.04 and 14.10. The word I'd use for their appearance in 14.10 is "shinier".