Install latest Firefox on CentOS Linux

1. Download the latest Firefox from http://download.cdn.mozilla.net/pub/mozilla.org/firefox/releases/. The current (British English, 64 bit) one is firefox-23.0.1.tar.bz2:

   cd ~/Downloads; wget http://download.cdn.mozilla.net/pub/mozilla.org/firefox/releases/23.0.1/linux-x86_64/en-GB/firefox-23.0.1.tar.bz2

2. Extract it into /opt:

   cd /opt; sudo tar jxvf ~/Downloads/firefox-*.tar.bz2

3. To start in Terminal:

   /opt/firefox/firefox

   You can also create launcher for it...
4. Link the plugin directory:

   cd ~/.mozilla; ln -s /usr/lib64/mozilla/plugins