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firefox 3.6alpha1pre ubuntu

Update 21 January, 2010: I removed the "pre-alpha" from the title, as now this PPA has the latest Firefox 3.6!

You may ask why would you want to install Firefox 3.6 pre-alphaMinefield in Ubuntu. Well, for testing purposes of course. While it worked ok for me in the 10 minutes browsing i used it, being in it's early alpha stages it should only be used for testing addons and to see the way web pages are rendered.

Below I will explain how to install Firefox 3.6 from the repositories, in Ubuntu:

Go to System > Administration > Software Sources, to the Third-Party Software tab and add this repository:
deb http://ppa.launchpad.net/fta/ubuntu UBUNTU_VERSION main
Replacing "UBUNTU_VERSION" with Karmic, Jaunty, Intrepid or Hardy. Then click on Close, open a terminal and type: sudo apt-get update

Then, use this command in a terminal to install Firefox 3.6:
sudo apt-get install firefox-3.6
After install is complete, you can find Firefox 3.6 alpha1pre in Applications > Internet under the name: Namoroka Web Browser.

Then add the PPA Key:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 247510BE

You can also use this method to install Firefox 3.5. After completing the steps above (only adding the repository and import the key), simply type this in a terminal:
sudo apt-get update && sudo apt-get install firefox-3.5
You will then see Firefox 3.5 under the name Shiretoko Web Browser in Applications > Internet

Update 22 January, 2010: It seems there's an error with the latest Firefox 3.6 and AppArmor (permission issues). See a fix, HERE.