I mean the fonts of the app itself, not the web pages rendered
If I change the DPI fonts resolutions (appearence preferences, fonts, details) from 96 dpi to, let's say, 80 the look fine, but obviously the rest of the apps get shrinked...
somehow Firefox interprets the DPI setting differently than the rest of the applications
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using Ubuntu 10.10 and Firefox 4.0, I tried in a VirtualBox machine with similar configuration and it looks good, maybe it's got something to do with the video driver...