Opera browser is an open source  and have powerful features. This help us stay online when your internet connection is slow.

We can install this browser in  Ubuntu, Fedora, CentOS, RHEL, etc. 

Download the packages as your system support 

Install in Ubuntu :

Download the Opera browser as your system support 32 bit or 64 bit version,

32 Bit

# wget http://get.geo.opera.com/pub/opera/linux/1216/opera_12.16.1860_i386.deb

64 Bit
 
# wget http://get.geo.opera.com/pub/opera/linux/1216/opera_12.16.1860_amd64.deb

Install :
 
#  dpkg  -i   opera_12.16.1860_i386.deb

CentOS, Fedora, RHEL

32 Bit
 
# wget http://get.geo.opera.com/pub/opera/linux/1216/opera-12.16-1860.i386.rpm

64 Bit 
 
# wget http://get.geo.opera.com/pub/opera/linux/1216/opera-12.16-1860.x86_64.rpm

Install rpm package:
 
# rpm -ivh opera-12.16-1860.i386.rpm

warning: opera-12.16-1860.i386.rpm: Header V4 RSA/SHA1 Signature, key ID
a8492e35: NOKEY
Preparing...      ################################# [100%]
Updating / installing...
   1:opera-2:12.16-1860############################# [100%]