Better: Download Previous Firefox Esr Version

Once you select a version folder, you must navigate through a series of subdirectories to find the correct installer for your specific system.

Alternatively, the safest method is to create a dedicated profile for your ESR installation by using the Profile Manager (launching firefox.exe -P ) to keep your data separate. 4. Disable Automatic Updates download previous firefox esr version

Navigate to the panel and scroll down to the Firefox Updates section. Once you select a version folder, you must

Scroll through the list to find your target version. ESR versions are explicitly labeled with the suffix (e.g., 128.0esr/ or 115.0esr/ ). 2. Choose Your Configuration Disable Automatic Updates Navigate to the panel and

Mozilla maintains a comprehensive public archive on its , which contains every version of Firefox ever released, including all ESR branches. Navigate to the Directory of Firefox Releases.

If you are installing an older ESR version over a newer standard release, you may need to launch the browser once with the --allow-downgrade command-line argument to force the profile to open.