Note on Lubuntu 14.04

If you have installed Lubuntu, then DO NOT install Chromium-browser and libreoffice from Ubuntu software repositories, but download the original packages from their websites.
https://www.google.com/chrome
http://www.libreoffice.org/

Chromium is very slow in my old computer, but chrome is faster.
Libreoffice from Ubuntu looks ugly and outdated.