I've just upgraded and I get the ugly-fonts problem too. I think the problem here is that they now use fontconfig for font selection, and none of the free fonts fontconfig wants to use are much cop. (Check fontconfig's Depends: ttf-bitstream-vera | ttf-freefont | gsfonts-x11 | msttcorefonts. The first looks horribly blurry to me, especially in mozilla menu bars. The third looks like gv's fonts (no surprise there), which seems slightly more palatable to me, but still not much good). The fourth is a wrapper package so you can use the (non-free) font files from a Windows installation. You might try faffing about installing or uninstalling some of these to see which is least worst.
This all worked perfectly well before, but I don't know how to get back to that now (it might not even be possible since probably everything wants to use antialiasing and fontconfig and xft and stuff. And if you turn antialiasing off mozilla misrenders!)
Hmm. I don't see any difference between having only ttf-freefont installed and having only gsfonts-x11. However, installing ttf-bitstream-vera gives a significant improvement; the fonts aren't aesthetically ideal, but at least the three vertical strokes of 'm' are consistently the same distance apart rather than the gaps being in a 2:1 ratio! Thanks for your help.
msttcorefonts turns out to actually go ahead and download the MS fonts for you with wget, so it's a pretty pain free way to get slightly better fonts if your ideology allows free-beer-but-not-modifiable fonts on your system...
I've just upgraded and I get the ugly-fonts problem too. I think the problem here is that they now use fontconfig for font selection, and none of the free fonts fontconfig wants to use are much cop. (Check fontconfig's Depends: ttf-bitstream-vera | ttf-freefont | gsfonts-x11 | msttcorefonts. The first looks horribly blurry to me, especially in mozilla menu bars. The third looks like gv's fonts (no surprise there), which seems slightly more palatable to me, but still not much good). The fourth is a wrapper package so you can use the (non-free) font files from a Windows installation. You might try faffing about installing or uninstalling some of these to see which is least worst.
This all worked perfectly well before, but I don't know how to get back to that now (it might not even be possible since probably everything wants to use antialiasing and fontconfig and xft and stuff. And if you turn antialiasing off mozilla misrenders!)