Pale Moon vs Firefox Speed Comparison (Cyberfox, too)... Firefox is faster
We've had a few requests over the years to make Pale Moon available. Pale Moon attempts to achieve speed by sacrificing some important bits like accessibility, but fails to achieve this goal by pinning to the outdated ESR branch of Firefox. The result is that Pale Moon is slower than Firefox.
As an example, here is a comparison of the current releases of each, Pale Moon Portable 24.4 vs Firefox Portable 28.0. It's a fresh install of each before each test is run. Here are the results for three popular browser benchmarks: