How to Self-Install the Java Console in Firefox
Firefox is a web browser created by the Mozilla foundation. Firefox runs on multiple operating systems. Its set of standard add-on interfaces enables users to customize Firefox by installing optional extensions that perform a variety of specialized tasks. In particular, the Java Console extension displays the output of each Java applet on a special Firefox window; this output can be very useful to debug the applet and to monitor its current status.
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Instructions
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Log in as a user with administrator rights. Install version 1.6 of Sun's Java Runtime Environment on your computer. The specific way of performing this action depends on your operating system. For example, on Ubuntu Linux, type the following commands on a shell:
apt-get update
apt-get install sun-java6-jre sun-java6-jdk sun-java6-plugin sun-java6-fonts
Press "Enter" at the end of each line. Log out.
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Log in to the computer on the account that will use Firefox. Launch Firefox. Navigate to the "Java Console 6.0.02" web page. Click on the "Continue to download" link and follow the prompts. Firefox will download, then install the extension as an add-on.
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Execute the extension's startup script by hand, to circumvent a bug in the current (as of March 2011) installer. For example, on Ubuntu Linux, type the following commands into a shell:
cd /usr/lib/firefox-addons/extensions
jar -xvf `find /usr/lib/jvm -name ffjcext.zip`
Press "Enter" at the end of each line.
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Restart Firefox. At this point, the Java Console will be operational for any Java applet you instruct Firefox to execute.
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