Pale Moon is the work of a single individual, using contributed Open Source code to create a full-featured, speed optimized version of the popular Firefox browser. Having seen the advantages on other systems (e.g. Linux) with regards to programs being compiled specifically for the capabilities of the machine it is installed on, it became obviously clear that Windows users were at a disadvantage: Mozilla only releases windows executables with maximum compatibility in mind, meaning that Firefox is made to run on as many different systems as possible, sacrificing efficiency and speed in the process to be compatible with, by current standards, absolutely ancient hardware.
Pale Moon is a middle road, cutting away support for ancient systems to achieve a significant speed and efficiency increase, but not trying to squeeze the last few percent more out of it by limiting the range of systems it will run on even more. It aims to not waste computer resources and power on inefficient programs, while at the same time serving a wide range of systems that are currently in use around the world.
Reviewing 25.2.0 (Jan 15, 2015)
Pale Moon is just fine. Most of my add on's from firefox work. Couple that i did have problems with, I just went to the add on site for that add on, cursor'd down and found the link for older versions of that add on. From there u can see older versions that do work with Pale Moon. No stability issues. I use the 64 bit version, so if your having probs with the 32 bit version, maybe give this a try. Plus has the old firefox UI. And the 5 or 6 complete themes i use from the firefox days, work with Pale Moon.
Reviewing 25.2.0 (Jan 15, 2015)
"one does not have to install an add-on to get them back"
Which is lucky as that add-on probably wouldn't work like most of them don't anymore. Was good once but not much chop now.
Reviewing 25.1.0 (Jan 7, 2015)
No reason for existing? It has no Australis and keeps all the customization functions which have been deleted out of Firefox and one does not have to install an add-on to get them back.
Reviewing 25.0.2 (Oct 27, 2014)
Competent browser, no better or faster than Firefox. Pointless. Low rating as it has no reason to exist.
Pale Moon doesn't start (error message when starting)
Make sure your system meets the requirements to run Pale Moon. The most common occurrence of this error is trying to run it on a PC that doesn't meet the system requirements. If you have an Athlon XP or MP machine or a Pentium II or III, this browser will not run. Because Athlon XP is very popular, there is a version of Pale Moon specifically for those PCs [here], but the main version of Pale Moon won't run on it!
Pale Moon for Athlon XP
Note: these builds are a courtesy, and may be updated later than the main browser build.
By popular demand, these browsers were built specifically for the Athlon XP or Athlon MP processors, since Pale Moon does not support these processors by default. These browsers are not as highly optimized as the standard Pale Moon browser, and were about 7-9% slower on the machine they were tested on than the standard Pale Moon in a synthetic test. Compared to Firefox, this is still a huge speed increase.