Waterfox is a Firefox-based browser especially designed for 64-bit operating systems. Waterfox uses the same profile that Firefox does. If you uninstall Waterfox make sure you don't have the remove personal data box ticked!
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.
Features:
Compiled in Intel's C++ Compiler
Intel's Math Library
Streaming SIMD Extensions 3
Advanced Vector Extensions
Jemalloc
Profile-Guided Optimisation
/O3 Switch
100% Extension Compatibility
64-bit Plugin Support
Future Proof!
Webpage: Waterfox - The fastest 64-bit variant of Firefox on the web
Portable