Java Not Working On Your Firefox 3? Try This Simple Fix!

After upgrading to Firefox 3, if you find that you cannot get java to run and you are 100% sure that you have already installed the latest version of java, here is a simple fix (for Ubuntu Hardy Heron).

Open up your Terminal (Applications->Accessories->Terminal).

Type the command

sudo apt-get autoremove icedtea-gcjwebplugin

to remove the icedtea-gcjwebplugin package from your system.

Restart your Firefox 3. The Java runtime should be working now.

(icedtea-gcjwebplugin is a little web browser plugin to execute Java applets. It is targeted for Mozilla and compatible browsers that support the NPAPI. It seems that this has some compatibility issue with Firefox 3.)

Damien Damien

Damien Oh started writing tech articles since 2007 and has over 10 years of experience in the tech industry. He is proficient in Windows, Linux, Mac, Android and iOS, and worked as a part time WordPress Developer. He is currently the owner and Editor-in-Chief of Make Tech Easier.


  1. Nice tip!
    Do you know what is the cause for the windows environment?
    I scrolled thru about:config and didn’t see anything similar, bu this is also an issue with FF3 and Windows.

  2. Yeahhhhhhhhhhhh, it’s working now!!! THANK YOU VERY MUCH!!!!

    I have Kubuntu 8.04 + Firefox 3.0.5

    bye byeeee

  3. When I entered this in, it didn’t work and I got the response “sudo: apt-get: command not found”. Does anyone know how I can fix this?

  4. “sudo apt-get autoremove icedtea-gcjwebplugin”

    Commands like this are why I still don’t use Linux.

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