Install HP Deskjet 1050 All-in-one J410 printer in Ubuntu 10.04

Uninstall your existing drivers

sudo apt-get remove --purge hplip hplip-gui
sudo apt-get update

Download driver from here


Execute the following commands,

chmod 777


The process will ask about installation type.
Select the install type automatic.

After installation run the following command,

sudo hp-setup

Note: Ubuntu 11.04 and higher versions can automatically detect the printer. No need to install any hp setup to configure the printer. Check Administration > printing to see your printer.

How to install Firefox 4 in Ubuntu 10.04 and 10.10

Open a Terminal from Applications > Accessories
And execute the following commands,

sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa
sudo apt-get update
sudo apt-get install firefox-4.0

You can see Firefox 4 appeared in Applications > Internet > Minefield 4.0