I need to run some old browser-based java applications. But when today I open my Firefox and try to open this app, I found that Java plugin not works. I searched Internet and find that new Firefox not longer supports Java plugin (Chrome and other browsers too). So how can I make this in-browser java application run? I use Ubuntu 16.04 64-bit.

  • Some browser-based Java applications may be possible to launch using appletviewer Apr 4, 2018 at 8:38

1 Answer 1


| Ubuntu 16.04 LTS 64-bit |

  • First, I have updated Java to have the latest version.

    sudo add-apt-repository ppa:webupd8team/java
    sudo apt-get update
    sudo apt-get install oracle-java8-installer
  • Then I download and unpack archive with 64-bit ESR Firefox (older version - v.45) from here

  • Then I close my 'standard' previously installed Firefox and run 'firefox' file from the extracted folder of the version 45 archive.

And after that I open my site and successfully run Java application from it.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.