How to Install Firefox ESR on Ubuntu 24.04, 22.04 or 20.04

Firefox Extended Support Release (ESR) is a beacon of stability and security for organizations and users prioritizing long-term consistency over cutting-edge features. Unlike its standard counterpart, Firefox ESR undergoes fewer updates, focusing on critical security patches and performance enhancements. This version is tailored for enterprises and other users requiring a more predictable deployment cycle, ensuring compatibility with web applications and internal systems over extended periods.

Firefox ESR not only delivers a safer browsing experience but also introduces:

  • Enhanced Stability: Firefox ESR minimizes disruptions with fewer updates, making it ideal for organizational IT environments.
  • Extended Support: Each ESR version receives security updates for a year, providing ample time for planning and upgrades.
  • Compatibility Assurance: ESR versions are tested extensively with web applications to ensure seamless integration.
  • Reduced Maintenance: IT departments benefit from reduced maintenance requirements, focusing resources on other critical tasks.
  • Security Focus: Prioritizing security patches keeps the browser resilient against evolving threats.
  • Customization Capabilities: Firefox ESR supports extensive customization to meet specific organizational needs.
  • Performance Reliability: Consistent performance across its support lifecycle ensures dependable web access.
  • Adaptable Configuration: Administrators can easily configure settings to align with organizational policies.

Transitioning now to the practical steps of installation, the upcoming sections will walk you through the necessary commands and considerations to install Firefox ESR on your Ubuntu system.

Install Firefox ESR via APT PPA

Update Ubuntu Before Firefox ESR Installation

Before installing, ensure your Ubuntu operating system and its packages are up-to-date. This helps prevent potential conflicts or issues during the installation.

sudo apt update

After updating the package index, upgrade any outdated packages using the command below:

sudo apt upgrade

Import Firefox ESR Browser PPA

Next, import the official “Mozilla Team” LaunchPAD PPA that contains Firefox ESR. This PPA is well maintained, and if you use Mozilla Thunderbird Mail, it also contains the latest stable version.

Run the following command to import the PPA:

sudo add-apt-repository ppa:mozillateam/ppa -y

Update Package Cache Index

Quickly refresh your APT Package index with the following command:

sudo apt update

Install Firefox ESR Browser via APT Command

With Mozilla Firefox PPA now imported, run the following command to install the browser:

sudo apt install firefox-esr

You don’t need to remove the standard Firefox stable browser, as the ESR version will be installed separately.

Verify Firefox ESR installation

To confirm the installation and check the build version of the installed Firefox ESR browser, run the following command in the terminal:

firefox-esr --version

Launch Firefox ESR via CLI or GUI

Now that you’ve installed the Firefox ESR browser, there are a couple of ways to launch it:

CLI Command to Launch Firefox ESR

Open the Firefox ESR browser by entering the following command in the terminal:


GUI Method to Launch Firefox ESR

Alternatively, you can locate and launch Firefox ESR using the application icon. Navigate to the applications menu and search for the Firefox ESR browser:

Activities > Show Applications > Firefox ESR
Launching Firefox ESR from the application icon on Ubuntu 24.04, 22.04, or 20.04.
How to start Firefox ESR on Ubuntu 24.04, 22.04, or 20.04.

First-Time Tips with Firefox ESR

Now that Firefox ESR is up and running on your Ubuntu system, it’s time to explore some essential tips to maximize your browsing experience.

General Tips for Firefox ESR

  • Explore Preferences: Access the Preferences menu through the Edit > Preferences path. Familiarize yourself with the various settings, including privacy, security, and general browsing options.
  • Enable Sync: Consider setting up Firefox Sync to keep your bookmarks, passwords, and history synchronized across devices. This feature is especially useful if you use Firefox on multiple platforms.
  • Privacy Settings: Dive into the Privacy & Security settings to adjust the level of data sharing you’re comfortable with. Firefox ESR offers robust customization for cookies, tracking protection, and data collection preferences.

Customization Tips

  • Install Add-ons and Themes: Enhance your browser’s functionality and appearance by exploring the Add-ons Manager (Tools > Add-ons). Look for add-ons specifically compatible with Firefox ESR, as some may be designed for the standard release.
  • Customize Toolbar: Right-click on the toolbar and select Customize to add, remove, or rearrange buttons according to your preference. This customization can streamline your workflow and improve accessibility.
  • Adjust Font and Color Settings: For a more personalized browsing experience, adjust the font size, type, and color settings under Preferences > General > Fonts & Colors.
  • Use the Compact View: If screen real estate is a concern, switch to the Compact view under Customize > Density to reduce the space taken up by toolbars and buttons.
See also
How to Install Python 3.12 on Ubuntu 22.04 or 20.04

Performance Tips

  • Content Blocking: Increase your browsing speed and protect your privacy by enabling content blocking under Privacy & Security > Content Blocking. Choose the level of protection that best suits your needs.
  • Clear Cache Regularly: While Firefox ESR handles cache more efficiently, clearing it periodically can free up disk space and resolve loading issues. Access this option via Preferences > Privacy & Security > Cookies and Site Data.
  • Minimize Extensions: Only keep essential add-ons enabled, as each extension consumes resources. Regularly review and disable or remove any that are not in use.
  • Hardware Acceleration: Ensure hardware acceleration is enabled under Preferences > General > Performance to improve video playback and overall performance, especially on systems with dedicated graphics cards.

Security Tips

  • Review Permissions: Regularly check the permissions you’ve granted to websites by going to Preferences > Privacy & Security > Permissions. Adjust as necessary to maintain your desired level of security.
  • Use a Master Password: Protect your saved passwords by setting a master password under Preferences > Privacy & Security. This adds an additional layer of security to your stored credentials.
  • Regular Security Checkups: Utilize Firefox’s built-in security features, like the password manager and breach alerts, to stay informed about any potential security issues.
  • HTTPS-Only Mode: Enable HTTPS-Only mode in Preferences > Privacy & Security to ensure that all your connections to websites are encrypted, further securing your online activities.

Keyboard Shortcuts

Familiarizing yourself with keyboard shortcuts can significantly enhance your efficiency and navigation speed in Firefox ESR:

  • Open a New Window: Ctrl + N
  • Open a New Tab: Ctrl + T
  • Close the Current Tab: Ctrl + W
  • Refresh the Current Page: F5 or Ctrl + R
  • Open History: Ctrl + H
  • Open Downloads: Ctrl + J
  • Toggle Full Screen Mode: F11
  • Search Within the Page: Ctrl + F
Firefox ESR ready for use on Ubuntu 24.04, 22.04, or 20.04 desktop.
Firefox ESR open on Ubuntu 24.04, 22.04, or 20.04.
Confirming Firefox ESR version installed on Ubuntu 24.04, 22.04, or 20.04.
Checking the Firefox ESR version on Ubuntu 24.04, 22.04, or 20.04.

Additional Firefox ESR Commands

Update Firefox ESR Browser

While Firefox ESR should update automatically alongside your system packages using the APT package manager, you can manually check for updates. To do so, run the following command in your terminal:

sudo apt update && sudo apt upgrade

Remove Firefox ESR Browser

To delete Firefox ESR, enter the following command:

sudo apt remove firefox-esr

Afterward, if you’re sure you won’t need to reinstall Firefox ESR in the future, you can remove the imported PPA. Use the command below to remove the corresponding PPA file:

sudo add-apt-repository --remove ppa:mozillateam/ppa -y


Throughout this guide, we’ve walked through installing Firefox ESR on Ubuntu versions 24.04, 22.04, and 20.04 LTS, covering the basics of advanced customization and security tips. Remember, Firefox ESR is your go-to for stability and security, especially in environments where consistent performance is vital. Keep your browser updated within the ESR releases, explore add-ons and themes to enhance your experience, and don’t forget to fine-tune those privacy settings to safeguard your browsing.

Useful Links

Here are some valuable links related to using Firefox Enterprise on an Ubuntu system:

  • Firefox Enterprise Official Website: Visit the official Firefox Enterprise website for information on enterprise features, deployment options, and download links.
  • Mozilla GitHub Resources: Explore Mozilla’s GitHub wiki page for information on the organization’s GitHub repositories, contribution guidelines, and development practices.
  • Firefox Enterprise Extensions Documentation: Access the Firefox Extension Workshop for detailed documentation on developing and managing extensions in an enterprise environment.

These links provide further information and resources to help you effectively use Firefox Enterprise on your Ubuntu system.

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