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Firejail Installation in Ubuntu 22.04 – Step-by-step

January 25, 2023 | By the+gnu+linux+evangelist.

Setting Up

  1. 2. Downloading Firejail

    Download Firejail for Ubuntu GNU/Linux

    Here Get Firejail .deb for Ubuntu
    Link to Download Firejail Package for Ubuntu

    We provide directly to Grab the latest Firejail release because that in the Apt Repository may be outdated.
    Possibly, on Firefox Prompt Choose “Save File”:

    Firefox Prompt
  2. 3. Installing Firejail

    Then to Set up Firejail on Ubuntu
    First, Access the Target, usually in the Downloads folder:

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    cd && cd Downloads

    To Check that there is run:

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    ls . | grep firejail

    The grep Command Refine the output List showing only the entries Matching the Keyword.
    But if you are in Trouble to Find Out it on Terminal See: How to Access Downloads Folder from Browser.
    And then to Setup firejail:

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    sudo apt install ./firejail*.deb

    Authenticate with the User Admin Pass.
    If Got “User is Not in Sudoers file” then see: How to Enable sudo.
    Or if you prefeer then try to Install it with the Ubuntu Software Installer UI.
    Simply Double-Click on the Package on the File Manager:

    Software Install

    And Authenticate with the Admin Pass to Install it:

    Authentication

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