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Here’s how to install Java on Ubuntu Jaunty 9.04. This will allow Firefox to run Java applications. It also works for those who are under 64 bit Ubuntu.

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What is Java ?

According to Wikipedia, Java refers to a number of computer software products and specifications from Sun Microsystems that together provide a system for developing application software and deploying it in a cross-platform environment. Java is used in a wide variety of computing platforms from embedded devices and mobile phones on the low end, to enterprise servers and supercomputers on the high end.

Flash is coming by default in Ubuntu Jaunty 9.04 repositories with the 32-bit version. Here is a small procedure to install the 64-bit version.

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What is Flash ?

According to Wikipedia : Adobe Flash (previously called Macromedia Flash) is a multimedia platform originally acquired by Macromedia and currently developed and distributed by Adobe Systems. Since its introduction in 1996, Flash has become a popular method for adding animation and interactivity to web pages; Flash is commonly used to create animation, advertisements, and various web page components, to integrate video into web pages, and more recently, to develop rich Internet applications. Web site like youtube or dailymotin use this technologie.

Installation

We must start by uninstalling the current version of Flash installed on your computer if necessary as follows :

sudo apt-get remove flashplugin-nonfree flashplugin-installer

Then, we download Flash directly from Adobe :

wget http://download.macromedia.com/pub/labs/flashplayer10/libflashplayer-10.0.22.87.linux-x86_64.so.tar.gz

We then extract the archive and move the extracted file in the plugins directory of Firefox :

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tar xvf libflashplayer-10.0.22.87.linux-x86_64.so.tar.gz
sudo mv libflashplayer.so /usr/lib/mozilla/plugins/

Now, just restart Firefox to take full advantage of Flash!