Waterfox is basically a 64-Bit version of Firefox. The Firefox source code is taken and compiled to run specifically for 64-Bit Windows computers. To make Waterfox stand out a bit more, it’s compiled with optimizations so that it will run more efficiently and faster than just compiling Firefox as a 64-Bit program. For some people with older systems, the 64-Bit version loads quicker and is much more responsive than the 32-Bit build.
In benchmarks, the 64-Bit variant of Firefox out-performs the 32-Bit variant. Also because this variant is being built specifically for Windows, there might be further performance increases. Waterfox was compiled with SSE, SSE2, x64 favoring and the following optimisation flags: /Og /Oi /Ot /Oy /Ob2 /Gs /GF /Gy
Add-Ons work on any version of Firefox, on any platform.
What’s new in Waterfox 2020.12
Fixed crashes on macOS Big Sur @dbsoft
Website compatibility patches
Latest security patches (best effort)†
† As the differences between Classic and later Firefox versions grow, we are doing our best to patch the security advisories as we think apply to Classic.
Waterfox G3.1.0 – Third Generation Release
February 02, 2021
Welcome to the Third Generation of Waterfox.
What’s new in G3.1.0
Migrated from Bing Translation API v2 to v3. You can manually add a key to enable this feature in about:config.
Fixed issues including language options when building Waterfox. This feature is still under testing.
Fixed issue with Profile Imports. You can now import from Firefox and Waterfox Classic once again!
Updated to Gecko 78.7 (includes security patches)
Add initial support for the Chrome Web Store and Opera Web Store. Improvements still to be made, but the first step to full support has now landed.
You can refresh your Waterfox profile in about:support. Useful if Waterfox is running slow or broken on websites.
Tab positions are now back! You can have browser tabs appear underneath the address bar or at the bottom of the display window. Available in about:preferences
Status bar is now back, available in about:preferences
Restart button is now back on the main menu