但之后再装firefox时就出错了 。以下是出错信息：
请教：怎么才能再装上firefox?After unpacking 29.3MB of additional disk space will be used.
(Reading database ... 101002 files and directories currently installed.)
Unpacking firefox (from .../firefox_2.0+0dfsg-0ubuntu3_i386.deb) ...
Replaced by files in installed package libnss3 ...
dpkg: error processing /var/cache/apt/archives/firefox_2.0+0dfsg-0ubuntu3_i386.deb (--unpack):
unable to create `./usr/lib/firefox/firefox': No such file or directory
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
/var/cache/apt/archives/firefox_2.0+0dfsg-0ubuntu3_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
谢谢