There is a fork of Pale Moon that is compatible with Windows XP called "New Moon". It's based on Palemoon 28.10.7a1. While an old version of the browser, it is still compatible with modern websites, such as Github.
It is available at http://o.rthost.win/palemoon/ , but make sure you don't download a 64-bit version by mistake. (Providing a non-secure http link because the MSIE version that ships with Windows XP is not compatible with modern https websites)
It is available at http://o.rthost.win/palemoon/ , but make sure you don't download a 64-bit version by mistake. (Providing a non-secure http link because the MSIE version that ships with Windows XP is not compatible with modern https websites)