What's wrong with firefox?(firefox 3.6.24)

Strange firefox fonts, strange table alignments in Ubuntu

But Chromium looks just fine.

Now I found the reason. In Firefox:
1. goto Edit >> Preferences.
2.  goto Content Tab, for  Fonts and Colors, choose Times New Roman, size 12

Click Advanced button, and for fonts of
Traditional Chinese (Hong Kong)
Traditonal Chinese (Taiwan)
and Other Languages
Proportional: Serif
Serif: Times New Roman
Sans-serif: Arial
Monospace: serif

 

Now, it looks much much better