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I tried to download the Opera web browser into Ubuntu 11.10 from I followed the procedure, pressing the download button for Opera for Linux. If I "Save to disk", and then try to open the download, a window pops up that says "INTERNAL ERROR - The file /home/Bob/Desktop/opera...."etc. Is Opera not compatible with Ubuntu 11.10? It was with an earlier version of Ubuntu. Is there a way around this?

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in terminal run gksudo gedit /etc/apt/sources.list and add this line deb stable non-free, save changes and run wget -O - | apt-key add - and than apt-get update, apt-get install opera – Victor K Jul 22 '12 at 15:44
And it installs on 12.04 perfectly without resorting to any terminal commands. The download should be a .deb file and if you right-click on it and choose to install via the software center things should work. – user25656 Jul 22 '12 at 16:10

To install Opera in Ubuntu read below:

There are two basic types of installations, static and shared:

Static version: Opera has the Qt library built in. It is a larger download, and it does not use antialiased fonts on menus or the file chooser, and uses aliasing in the browser window and most other interface elements.

Shared version: Opera uses the Qt installation on your system. It integrates with the system, using whatever anti aliasing setting you have for other Qt applications.

The shared version is probably better, as some of the resources it uses (e.g., RAM for the Qt libraries) can be reused by other applications. Try the other one if you run into installation or operational problems.1

Read On

1Source:Ubuntu Documentations

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