Pale Moon 25.4.1

4.1 out of 5 stars 4.1 (409 votes)


Windows 7/8/Vista/XP / Freeware / 11,247 downloads

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.

  • Homepage

    Pale Moon

  • Uninstaller


  • Latest Changes

    - Fixed loss of the browser's disk cache on startup due to incorrect corruption detection logic

    - Fixed a browser crash on some HTML5 games

Reviews of Pale Moon

  1. 1 out of 5 stars

    Reviewing 25.4.1 (May 23, 2015)

    Was using Firefox for many, many years and tried Pale Moon. The older versions were very good. This new version is absolutely terrible. Outdated code and many sites don't recognize it.

  2. 1 out of 5 stars
    Fred G. Sanford

    Reviewing 25.4.1 (May 16, 2015)

    nilst2006 - could not agree with you more.

  3. 5 out of 5 stars

    Reviewing 25.4.1 (May 15, 2015)

    This has been my browser of choice for years, I don't see any reason to change. It's Firefox without the bloated crap Mozilla has been adding to it. 5 stars

  4. 4 out of 5 stars

    Reviewing 25.4.0 (May 8, 2015)

    Still a good browser. For people having problems with add on's, just go to that add on's website. Click on- view other versions and you should see an older versions of that add on that will work with Pale Moon. If you dont see view older versions, toggle down to the bottom of that page to version Information. Once you find a version that works, I just right click over the download button and save target as, and than you have a copy of that add on for future use. Its a pain, but blame Firefox for all this bs with its constantly changing formats and what not.

  5. 1 out of 5 stars
    Fred G. Sanford

    Reviewing 25.3.2 (Apr 28, 2015)

    The "emergency update" in v25.3.2 is bizarre since Mozilla fixed their recent problem with improperly signed extensions within hours of it happening. Doubly bizarre since a lot of those extensions can no longer be installed to Pale Moon anyway since the browser broke off its compatibility with Firefox.

Discuss Pale Moon

  1. Jun 29, 2010 - 5:29 PM

    Latest news:
    The Firefox 3.6.6 code base has been released. Pale Moon will follow suit when there has been sufficient time for building and testing it, but development is halted for a few weeks due to relocation. Please be patient, folks!

  2. Apr 9, 2010 - 5:22 PM

    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.