How to Download and Install Firefox 12-51 ESR
If you are looking for a stable, secure, and customizable web browser that can run on older systems and support legacy web standards, you might want to try Firefox Extended Support Release (ESR). In this article, we will explain what Firefox ESR is, what are its main features and benefits, and how to download and install it on different platforms.
What is Firefox ESR?
Firefox ESR is a special edition of the popular Firefox browser that is designed for organizations, businesses, schools, universities, and other users who need extended support and stability for mass deployments. Unlike the regular Firefox browser that receives major updates every four weeks, Firefox ESR receives major updates only once a year, with minor security and stability patches in between. This ensures that Firefox ESR users can enjoy a consistent and reliable browsing experience without having to deal with frequent changes and potential issues.
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What are the main features and benefits of Firefox ESR?
Firefox ESR offers many features and benefits that make it a great choice for users who value long-term support, privacy, security, compatibility, and control over their web browser. Here are some of them:
Firefox ESR features
Long-term support and stability: Firefox ESR provides more than a year of support for each major version, with point releases that contain security upgrades. It also has a three-cycle overlap between the time of a new release and the end-of-life of the previous release, allowing users to test and certify the new version before deploying it.
Enhanced privacy and security: Firefox ESR is open source, provides Enhanced Tracking Protection, supports DNS over HTTPS, blocks downloads from insecure connections, prevents sites from leaking private information to trackers, and fixes security vulnerabilities regularly. It also allows users to view and manage web certificates in about:certificate.
Remote configuration and deployment: Firefox ESR has an installer that allows system administrators to install the browser from a central computer to all the computers on the network. It also supports a wide range of group policies and features that enable administrators to enable or disable functions, set preferences, control updates, and manage security settings.
Compatibility with older web standards and plugins: Firefox ESR supports some web standards and plugins that are no longer supported by regular Firefox, such as NPAPI plugins (except Flash), TLS 1.0/1.1 protocols, FTP protocol, Adobe Primetime CDM plugin, etc. This allows users to access legacy applications and websites that rely on these technologies.
Firefox ESR benefits
Reduced risk of breaking changes and bugs: By using Firefox ESR, users can avoid potential problems caused by frequent updates that may introduce new features, remove existing features, change user interface elements, or modify browser behavior. Users can also benefit from more testing and feedback from other users before adopting a new version.
Consistent performance and user experience: Firefox ESR users can enjoy a fast, smooth, and responsive browsing experience that does not change significantly over time. They can also customize their browser with themes, extensions, bookmarks, passwords, history, and other settings that are preserved across updates.
Control over updates and policies: Firefox ESR users can decide when and how to update their browser, depending on their needs and preferences. They can also configure their browser to follow the policies and rules set by their organization or network administrator, ensuring compliance and security.
Support for legacy applications and websites: Firefox ESR users can access and use applications and websites that are built with older web standards and technologies that are no longer supported by regular Firefox. This can be useful for users who work with legacy systems or need to access historical data or information.
How to download and install Firefox ESR on different platforms?
Firefox ESR is available for Windows, macOS, and Linux platforms. The installation process is similar to regular Firefox, but with some differences depending on the platform. Here are the steps to download and install Firefox ESR on each platform:
Windows
Go to the of Firefox ESR and click on the Download button for Windows.
Save the installer file to your computer and run it.
Follow the instructions on the screen to complete the installation.
Launch Firefox ESR from the Start menu or the desktop shortcut and check the version from the Help menu.
macOS
Go to the of Firefox ESR and click on the Download button for macOS.
Save the disk image file to your computer and open it.
Drag the Firefox ESR icon to the Applications folder.
Launch Firefox ESR from the Applications folder or the Dock and check the version from the Firefox menu.
Linux
Go to the of Firefox ESR and click on the Download button for Linux.
Save the tarball file to your computer and extract it to a desired location.
Run the firefox file from the extracted folder.
Check the version from the Help menu.
Conclusion
In this article, we have explained what Firefox ESR is, what are its main features and benefits, and how to download and install it on different platforms. We hope that this article has helped you understand why Firefox ESR might be a good option for you if you need a stable, secure, and compatible web browser that can run on older systems and support legacy web standards. Here are some tips and recommendations for using Firefox ESR:
If you want to switch from regular Firefox to Firefox ESR, you can import your bookmarks, history, passwords, and other settings from your existing profile. However, some extensions and themes might not work with Firefox ESR, so you might need to find alternatives or disable them.
If you want to switch from Firefox ESR to regular Firefox, you can export your bookmarks, history, passwords, and other settings to a new profile. However, some settings might not be compatible with regular Firefox, so you might need to adjust them or reset them.
If you want to run both regular Firefox and Firefox ESR on the same computer, you can install them in different folders and use different profiles for each one. However, you should not run them at the same time, as they might interfere with each other or cause conflicts.
We hope that you have enjoyed reading this article and learned something new. If you have any feedback or questions about Firefox ESR, please feel free to share them in the comments section below. We would love to hear from you!
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Frequently Asked Questions
What is the difference between Firefox ESR and regular Firefox?
The main difference between Firefox ESR and regular Firefox is that Firefox ESR receives major updates only once a year, while regular Firefox receives major updates every four weeks. This means that Firefox ESR is more stable, consistent, compatible, and controllable than regular Firefox, but also less up-to-date, innovative, feature-rich, and flexible than regular Firefox.
Who should use Firefox ESR?
Firefox ESR is designed for users who need extended support and stability for mass deployments, Continuing the article: such as organizations, businesses, schools, universities, and other users who value long-term support, privacy, security, compatibility, and control over their web browser. Firefox ESR is also suitable for users who have older systems or need to access legacy applications and websites that rely on older web standards and technologies.
How often does Firefox ESR update?
Firefox ESR updates every four weeks, but only with minor security and stability patches. It receives a major update only once a year, usually in September or October. The current version of Firefox ESR is 12-51, which was released on September 7, 2023. The next major version of Firefox ESR will be 13-52, which is expected to be released in September or October 2024.
How can I check the version of Firefox ESR?
You can check the version of Firefox ESR by clicking on the menu button (the three horizontal bars) in the upper right corner of the browser window, then clicking on Help, and then clicking on About Firefox. A new window will open that will show you the version number and the update status of your browser.
How can I update Firefox ESR?
You can update Firefox ESR by clicking on the menu button (the three horizontal bars) in the upper right corner of the browser window, then clicking on Help, and then clicking on About Firefox. A new window will open that will show you the update status of your browser. If there is an update available, you can click on the Restart to update Firefox button to apply the update. Alternatively, you can download the latest version of Firefox ESR from the and install it over your existing installation.
How can I uninstall Firefox ESR?
You can uninstall Firefox ESR by following the steps for your platform:
Windows: Go to the Control Panel, then click on Programs and Features, then find and select Mozilla Firefox ESR in the list of programs, then click on Uninstall.
macOS: Go to the Applications folder, then drag the Firefox ESR icon to the Trash.
Linux: Go to the folder where you extracted the Firefox ESR files, then run the uninstall file.
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