Waterfox Browser Old Version Site

Not all old Waterfox versions are created equal. The developer has bifurcated the project into two distinct tracks. Here is the breakdown:

To understand the demand, you must understand Waterfox’s history. The browser was originally a simple recompile of Firefox source code to run natively in 64-bit on Windows. But over time, Waterfox diverged.

Here are the primary reasons users actively seek an older version of Waterfox:

Waterfox was forked from Firefox in 2011 by Alex Kontos (a 16-year-old student). The core promise: 64-bit builds, no telemetry, support for legacy extensions (XUL/XPCOM), and no forced features like Pocket or sponsored tiles. waterfox browser old version

Why did this version die? Security and web standards.

By 2021, Waterfox Classic (version 2020.10) was running on a Gecko engine from 2017. It lacked support for:

Using Waterfox Classic on the modern web became an exercise in whack-a-mole. Google Docs would lag. Discord’s web app would throw "unsupported browser" warnings. Reddit’s redesign would stutter. Not all old Waterfox versions are created equal

The developer maintains an archive of releases. This is the only recommended source for downloading old versions.

The original developer, MrAlex94, has published all old releases on GitHub. Here is the step-by-step process:

Let’s install Waterfox Classic 2020.09 alongside your modern browser without conflicts. Using Waterfox Classic on the modern web became

Step 1: Disable Automatic Updates

Step 2: Run the Installer

Step 3: Modify the Shortcut

Step 4: First Launch & Profile Separation

Step 5: Lock the Version