Recently, I have written about how to install Mozilla Firefox 9 on Ubuntu via Launchpad PPA. If you are aware installing such application from Launchpad PPA that means from "untrusted source", you might want to install it via Official Ubuntu repository called "Security Update".

If you have not activated "Security update" repository yet, please open "Software Properties", navigate to "Updates" tab and activate "Important security updates (oneiric-security)".

Click "Close" and Reload the APT source file or type the following command:
  • sudo apt-get update
  • sudo apt-get dist-upgrade
Once installed, you can enjoy your newly Mozilla Firefox 9 :)

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About the Author

Damar Riyadi is a chief and owner of , Damar Riyadi joining the UB! since september 2011, he commit to bring a quality ubuntu review and article for you. Interested with him, find him in Google + , Facebook , and Launchpad.