Why my Firefox doesn't display Cyrillic fonts well?

[Yuri]

S4mmael wrote:
> webfont works well. You can also install ttf fonts from windows.Or use Ubuntu).
>   

webfonts is installed on my system and doesn't work in ff, as I 
mentioned before.
My question is "why ff shows Cyrillic so poorly, as opposed opera on the 
same system", and you didn't answer it.

Thanks,
Yuri