firefox error,Help!!

[onlyflyer]

Now i use Ie5.0 to input this message,but i can't input chinese ,sorry!
A few mintues ago,i added some extension to firefox.At first,it seem to work well.But when i delete one extension,error happened.Firefox can't response my order.You can see it in the picture below.

In order to solve the question,I uninstall firefox,and reinstall it again and again.But it doesn't work.
what should it do.Thank you!

[onlyflyer]

好了，我把home里面的配置文件给删了然后重装一遍就好了