Opera is a popular web browser, available for Linux, Mac OS X and Windows. Last year, Opera has adopted Google’s forked WebKit engine, the new versions of the browser being based on Chromium.
The latest version available is Opera 34 Stable, which brings improvements for Opera Turbo, the feature that performs data compression, to reduce the internet traffic.
To install and test Opera Stable on Ubuntu 15.10 Wily Werewolf, Ubuntu 15.04 Vivid Vervet, Ubuntu 14.04 Trusty Tahr and derivative systems, like: Linux Mint 17.3 Rosa, Linux Mint 17.2 Rafaela, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana, Pinguy OS 14.04, Elementary OS 0.3, Deepin 2014, Peppermint Five, LXLE 14.04 and Linux Lite 2, you need to download the deb package and install it via command-line.
For now, Opera Stable is available as 64 bit packages only, but 32 packages should be created starting with the future Opera releases.
How to install Opera stable on 64 bit Ubuntu systems and derivatives:
$ sudo apt-get install libnotify-bin chromium-codecs-ffmpeg-extra gdebi
$ wget http://deb.opera.com/opera/pool/non-free/o/opera-stable/opera-stable_34.0.2036.25_amd64.deb -O opera-stable_amd64.deb
$ sudo gdebi opera-stable_amd64.deb
Because the Opera package gets updated frequently, download the deb for amd64 Ubuntu systems from HERE and install it via gdebi.
Optional, to remove opera-beta, do:
$ sudo apt-get remove opera-beta