Hi, 牋牋 I am a newbie in Ubuntu who uses the 8.04 (Hardy) version. I find that my firefox is of version 3.0.17 and I want to install a newer version of it. I think that Ubuntu 9.10 may have packaged firefox with a newer version. 牋牋 If I want to stay in Hardy, could I use "apt-get" to just install some packages in the Ubuntu 9.10 repository ? Is there anything that I could edit in the "/etc/apt/source.list" file so as to just fetch and install some packages in Ubuntu 9.10 ? Or are there other ways that I could install newer version of some of my installed packages ? 牋牋 The following is the listing of my "/etc/apt/sources.list" file : deb <a href="http://archive.canonical.com/ubuntu">http://archive.canonical.com/ubuntu</a> gutsy partner deb-src <a href="http://archive.canonical.com/ubuntu">http://archive.canonical.com/ubuntu</a> gutsy partner deb <a href="http://archive.ubuntu.com/ubuntu/">http://archive.ubuntu.com/ubuntu/</a> hardy main universe restricted multiverse deb-src <a href="http://archive.ubuntu.com/ubuntu/">http://archive.ubuntu.com/ubuntu/</a> hardy main universe restricted multiverse deb <a href="http://security.ubuntu.com/ubuntu/">http://security.ubuntu.com/ubuntu/</a> hardy-security universe main multiverse restricted deb-src <a href="http://security.ubuntu.com/ubuntu/">http://security.ubuntu.com/ubuntu/</a> hardy-security universe main multiverse restricted deb <a href="http://archive.ubuntu.com/ubuntu/">http://archive.ubuntu.com/ubuntu/</a> hardy-updates universe main multiverse restricted deb-src <a href="http://archive.ubuntu.com/ubuntu/">http://archive.ubuntu.com/ubuntu/</a> hardy-updates universe main multiverse restricted 牋牋 Any suggestion. Regards Lawrence