Pale Moon 19.0.1 available for download

Pale Moon is a custom-built and optimized Firefox-based browser for Windows operating systems with current, high performance processors. It looks identical to the standard Firefox browser and supports Firefox extensions, themes and identities.


  • Highly optimized for modern processors
  • 100% Firefox sourced: As safe as the browser that has seen years of development.
  • Uses slightly less memory because of disabled redundant and optional code
  • Significant speed increases for page drawing and script processing
  • Stability: experience fewer browser crashes.
  • Support for SVG and Canvas, and downloadable fonts including WOFF
  • Support for HTML5 and WebGL (v4+)
  • Support for Firefox extensions (add-ons), themes and personas
  • Support for OOPP (Out-of-process plugin execution)
  • Able to use existing Firefox bookmarks and settings with this migration tool

A minor update to address a few issues with the initial major release:

  • Fix for bookmarks giving an "XML parsing error" when set to "load in the sidebar"
  • Fix for a double padlock display if a secure site would not supply a favicon
  • Redone the mixed content https padlock image in 32bpp to prevent potential UI rendering issues
  • Fixed a setting so no unnecessary code walking is done for the otherwise disabled accessibility features
  • Fix (inherent) for add-ons and themes being marked as incompatible in Pale Moon x64 when they have a minimum version of 19.0

Download: Pale Moon 19.0.1 | 15.2 MB (Freeware)
Download: Portable Pale Moon 19.0.1 | 17.2 MB
Download: Pale Moon 19.0.1 x64 | 18.4 MB
View: Homepage | Release Notes

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Ok then, can you explain why I recently experienced the following ... ?

Firefox 18.0 - only one window open with 7 tabs ... using 1010MB RAM - almost 1GB!
SeaMonkey 2.15.1 - 23 tabs across two seperate windows ... using only 480MB RAM.
PaleMoon 15.4.1 - Same 7 tabs as Firefox 18.0 ... but only using 228MB RAM

This was on a system with a 2.6GHz Core2Quad CPU and a total of 3GB RAM installed.
Pale Moon and SeaMonkey combined use less RAM than a single instance of Firefox!
How can you possibly say the official Firefox isn't bloated by comparison?!?

I have ~30 tabs open right now & on average, with 14+ ad-dons enabled, Flash player streaming & yet the memory utilization is ~270MB & the CPU is idling as well. The plugin-container & the flash plugin are both utilizing >5MB of RAM!!
I don't think you are fit to run these tests!!

I've tested Pale Moon and Waterfox many times over the years, on a huge variety of hardware (from low end Intel and AMD processors to the best of today with Ivy Bridge quads and AMD Piledriver octa-core CPUs) and even to this day, neither Pale Moon or Waterfox compare to the actual publicly available version of Firefox direct from Mozilla. I know they claim performance improvements and reduced memory usage but, in every test case that I've done for myself, they both lose to the plain old vanilla builds released by Mozilla itself.

And people still put faith in these somewhat bloated under-performing custom compiles and I'll never understand it.

As for their 64 bit variants, those are even worse when it comes to performance...

It human to desire elements which are better and its human again to believe in others claiming to offer what one might want, but having the knowledge or the understanding to put these claims to the test will always be scarce, hence advertising works!

Uhm. Even though Palemoon uses a bit more RAM on a clean start up then Firefox does. It actually is faster in everything it does. Starting the browser, loading webpages. And when I let FF idle in the background for a few hours. The 32bit Mozilla version takes 5-10minutes to wake up, palemoon does it in ~10 seconds.
And the RAM usage is only greated on start up, open up a couple of tabs and heavy websites. And FF usage will shoot up, using a full core to load a website is abnormal and not something im happy with. Also the 1GB+ ram usage it has after a couple of hours... shows how Mozilla focusses on the memory leaks and performance.. NOT.
I truly notice allot of speed improvements and less resource usage while running Palemoon vs Firefox. Not a single issue with addons (as Mozilla claimed was the reason for dropping 64bit windows support, total BS argument, but that's usual coming from Mozilla).
I've got both installed and still use normal FF every now and then (I like to switch browsers for no real apparent reason). But even though IE is my preferred browser (as I don't need any plugins, everything I need, comes OOTB) I still use Palemoon often.(facebook and a few websites since they either don't work in IE or I prefer using them with stylie)

But both are falling behind when it comes to the performance of Chrome (rather Ironware) and IE.