How to enable Workspace in Ubuntu 14.04 LTS

http://askubuntu.com/questions/459284/how-to-use-different-workspaces-on-ubuntu-14-04

Features installed on Firefox

Firebug
https://addons.mozilla.org/en-US/firefox/addon/firebug/?src=search

Clear Cache
https://addons.mozilla.org/en-US/firefox/addon/clearcache/?src=search

How to install a CERN printer on Ubuntu 12.04 or 14.04?

https://twiki.cern.ch/twiki/bin/view/Main/UbuntuPrinting

How to install SqlDeveloper on Ubuntu 14.04 LTS?

http://askubuntu.com/questions/458554/how-to-install-sql-developer-on-ubuntu-14-04

How to install java plugin to firefox?

http://askubuntu.com/questions/354361/how-to-install-the-java-plugin-for-firefox

Autotype AutoKey Hotkey Ubuntu 14.04

http://askubuntu.com/questions/280604/assign-hotkeys-to-paste-predefined-text

How to download music MP3 from youtube

youtube-dl --extract-audio --prefer-ffmpeg --audio-format mp3 https://www.youtube.com/watch?v=wgEK6g8LsR4