adobe reader installed

http://www.ubuntugeek.com/how-to-install-adobe-pdf-reader-with-plug-in-for-mozilla-firefox-in-feisty-fawn.html

Using medibuntu Repository

Medibuntu (Multimedia, Entertainment & Distractions In Ubuntu) is a repository of packages that cannot be included into the Ubuntu distribution for legal reasons (copyright, license, patent, etc).

Add gpg key using the following command

wget -q http://packages.medibuntu.org/medibuntu-key.gpg -O- | sudo apt-key add -

Edit sources.list with new repo data

sudo wget http://medibuntu.sos-sts.com/sources.list.d/feisty.list -O /etc/apt/sources.list.d/medibuntu.list(this list is out of date now. 7.Feb)

see here: https://help.ubuntu.com/community/Medibuntu

for add the reporitory

Update the source list using the following command

sudo apt-get update

Install acrobat reader with firefox plugin in Ubuntu

sudo apt-get install acroread mozilla-acroread acroread-plugins

This will complete the installation

If you want top open acrobat reader go to Applications -> Office -> Adobe Reader