A few days ago the team of opera published the version 12.02 of the browser, a release that includes improvements in security and performance issues, as well as numerous bug fixes.
The Opera browser is not in the official Ubuntu repositories – and derivative distributions such as Kubuntu – due to licensing issues, although can be easily installed thanks to repositories provided by the Norwegian browser developers themselves. To install Opera we must first add the browser repository to ours software sources. This can be easily done through the console thanks to GNU nano.
We start by opening a console and creating the file opera.list to the route /etc/apt/sources.list.d/.
sudo nano /etc/apt/sources.list.d/opera.list
We enter the repository deb http://deb.opera.com/opera/ stable non-free, Which will provide us with the latest stable version from the browser.
We save the trucks by pressing Control + O; we confirm that we want to overwrite the file opera.list and then we left GNU nano by typing Control + X.
The following is import public key of the repository, which is done with the command:
wget -O - http://deb.opera.com/archive.key | sudo apt-key add -
Fet. Now all you have to do is refresh the local information, and then install the browser.
sudo apt-get update && sudo apt-get install opera
Once the installation is complete we can launch the browser through the menu or launcher of our choice. A quick look at Menu → Help → About Opera confirms to us that we are using the latest stable version, in this case the 12.02:
More information – Firefox 15 now available in Ubuntu 12.04, Integrates the appearance of Firefox in Kubuntu