Eclipse Lun3r is a fork of Pale Moon made for Windows XP. Some advantages over upstream and roytam1's New Moon are more optimizations and better interoperability with upstream. (using SQL storage intead of DBM)

Main download link (GitHub)

Alternative download link (SourceForge)

Installer and true portable variants.
More optimizations than upstream.
Features from Mypal like duplicate tab.
Experimental and very broken e10s support. (it works better in Hydra)
Uses SQL instead of DBM for better compatibility with upstream profiles.
JPEG XL support!
Lun3r/New Moon theme coloring is fixed on XP.
Windows theme version override.
Added back Nvidia 3D. (untested)
Integrated PDF reader.