Si quieres instalar Firefox 3 Beta 4 simplemente ejecuta:

$ wget -P ~ ftp://ftp.mozilla.org/pub/firefox/releases/3.0b4/linux-i686/en-US/firefox-3.0b4.tar.bz2 && tar xjf ~/firefox-3.0b4.tar.bz2 -C ~

P’a que más???

Podras entonces iniciarlo con:

$ ~/firefox/firefox

Eso si, antes de instalarlo no olvides sacar una copia de seguridad de tu perfil actual:

cp -r ~/.mozilla/firefox/ ~/firefox_profile_backup

Por si despues quisieras recuperarlo (bastaria con volver a sobreescribir ~/.mozilla/firefox/)

Noticia original extraida de | Tombuntu

Preparing packages for installation…
zimbra-core-2005.0.0_39.FC3-1_ARMSTRONG
Preparing packages for installation…
zimbra-ldap-2005.0.0_39.FC3-1_ARMSTRONG
Preparing packages for installation…
zimbra-mta-2005.0.0_39.FC3-1_ARMSTRONG
Preparing packages for installation…
zimbra-snmp-2005.0.0_39.FC3-1_ARMSTRONG
Preparing packages for installation…
zimbra-store-2005.0.0_39.FC3-1_ARMSTRONG
COMMAND: zmmyinit
* Creating required directories
* Generating mysql config /opt/zimbra/conf/my.cnf
* Creating database in /opt/zimbra/db/data
* Starting mysql server
* Loading schema /opt/zimbra/db/db.sql
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/opt/zimbra/db/mysql.sock’ (2)
* Loading version from /opt/zimbra/db/versions-init.sql
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/opt/zimbra/db/mysql.sock’ (2)
* Setting random password for mysql root user in zimbra local config
* Setting random password for mysql zimbra user in zimbra local config
* Changing mysql root user password
/opt/zimbra/mysql/bin/mysqladmin: connect to server at ‘localhost’ failed
error: ‘Can’t connect to local MySQL server through socket ‘/opt/zimbra/db/mysql.sock’ (2)’
Check that mysqld is running and that the socket: ‘/opt/zimbra/db/mysql.sock’ exists!
* Changing mysql zimbra user password
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/opt/zimbra/db/mysql.sock’ (2)

más…