The program has been made more lightweight, for instance, by stripping out little-used components like the accessibility features, and the parental controls. The crash report has also been stripped out, as it's designed to work with server-side technology that isn't available on palemoon.org. And Pale Moon also drops support for Internet Explorer's ActiveX and ActiveX scripting technology, which also offers a security benefit as it means the browser can't be infected by malicious ActiveX controls.
Other optimisations are more technical. In particular, Firefox is compiled with the most conservative of settings, to ensure that it'll run on even ancient CPUs. Pale Moon, though, is optimised to take full advantage of modern processors, and this can give it a huge advantage over Firefox in some areas.
FEATURES
Pale Moon/New Moon for Windows XP. Officially, Pale Moon does not support Windows XP anymore. The last official version is 26.5.0 (available at the bottom of this page), but since then, unofficial modified versions have appeared. Since September 2017, there is an unofficial version called New Moon by Fedor2 which restores support for. Pale Moon by Moonchild Productions is an open-source Internet browser that was designed based on the popular Firefox. Sadly, a version of Pale Moon for Mac has not been developed, but there are plenty other browsers your can use in your system to surf the web. You cannot disable keys that belong to the OS, like Cmd-Q closing Firefox in Mac OS X. Check the Help or search the Internet for how to disable these features for the OS itself. Windows users may find AutoHotkey to be useful. The Pale Moon Add-ons Site is powered by Project Phoebus 2.0.5.
These are things i've either created, ported, forked, compiled or contributed to.PowerPC Mac OS X 10.4 and 10.5
Arctic Fox web browser : info and download
IceWeasel-PPC web browser : info and download
TenFiveTube & YewTube apps to watch YouTube : info and download (10.5 only)
Facebook, Twitter and Sound Cloud mobile apps : info and download (10.5 only)
Google Hangouts app : info and download (10.5 only)
Facebook Messenger app : info and download (10.5 only)
PPCBrowser lightweight webkit browser : info and download
TenFourKit webkit browser duckduckgo start page mod : download (10.4 only)
LMMS Linux MultiMedia Studio : homepagedownload (10.5 only)
Intel Mac OS X 10.6 and above
SpiderWeb browser : download and info
Arctic Fox web browser : downloadinfosource
Browser lightweight webkit browser : download
Facebook and Twitter mobile apps : info and download
Sound Cloud mobile app : download
Yewtube tonvid/youtube app : info and download
HookTubeX hooktube/youtube app : info and download
Pale Moon 27.9.4 web browser (32-bit) : download
Pale Moon 27.9.4 web browser (64-bit) : download
Intel Mac OS X 10.7 and above
InterWeb web browser : download and info
SpiderWeb browser and e-mail client : info and download
PowerPC Linux (32-bit) Ubuntu 16.04 / Debian 10 / Fienix
Lubuntu 12.04 & 16.04 Remix (live CD / DVD + installer) : info and download
Debian Sid Remix : Info and download
Arctic Fox web browser : (see links above for OS X 10.6)
SpiderWeb browser : info and download
SpiderMail e-mail/news/rss : info and download
InterWeb browser : Info and download
Extra rebuilt packages for 16.04+ : Download Repository