The objective is to install and enable Adobe flash web browser player in Firefox browser on Ubuntu 18.04 Bionic Beaver Linux

Operating System and Software Versions

  • Operating System: - Ubuntu 18.04 Bionic Beaver
  • Software: - Firefox Quantum 57.0.1


Privileged access to your Ubuntu System as root or via sudo command is required.


  • # - requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command
  • $ - requires given linux commands to be executed as a regular non-privileged user

Other Versions of this Tutorial

Ubuntu 20.04 (Focal Fossa)


Install Flash Player Plugin

Execute the below command to install flashplugin-installer package from the Ubuntu's multiverse repository:
$ sudo apt install flashplugin-installer
If the above command fails, make sure that you have Ubuntu's multiverse repository enabled. The following linux command will enable multiverse repository from the command line:
$ sudo add-apt-repository "deb http://archive.canonical.com/ubuntu $(lsb_release -sc) multiverse"
$ sudo apt update

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Enable Flash Player Plugin

Once the above flash player package is installed, start ( restart if already open ) firefox browser and navigate to: https://helpx.adobe.com/flash-player.html to test your Flash player installation.

Scroll down to section "5. Verify whether Flash Player is installed". Hit "Activate Adobe Flash" and click on "Allow Now" to enable flash player only for a current website or click "Allow and Remember" to enable Flash Player on all websites:

allow flash player firefox 18.04 ubuntu bionic

If successful you should see animation:

installed flash player firefox 18.04 ubuntu bionic
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